diff --git a/static/app/views/insights/pages/ai/aiOverviewPage.tsx b/static/app/views/insights/pages/ai/aiOverviewPage.tsx
index f6d0c7be62651a..efb354aed1bf06 100644
--- a/static/app/views/insights/pages/ai/aiOverviewPage.tsx
+++ b/static/app/views/insights/pages/ai/aiOverviewPage.tsx
@@ -47,13 +47,13 @@ import {
 } from 'sentry/views/performance/utils';
 
 export const AI_COLUMN_TITLES = [
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'p50()',
-  'p95()',
-  'users',
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'p50()'},
+  {title: 'p95()'},
+  {title: 'users'},
 ];
 
 function AiOverviewPage() {
diff --git a/static/app/views/insights/pages/backend/backendOverviewPage.tsx b/static/app/views/insights/pages/backend/backendOverviewPage.tsx
index 1b78987b2cac4e..ff19a33302a390 100644
--- a/static/app/views/insights/pages/backend/backendOverviewPage.tsx
+++ b/static/app/views/insights/pages/backend/backendOverviewPage.tsx
@@ -47,17 +47,17 @@ import {
 } from 'sentry/views/performance/utils';
 
 export const BACKEND_COLUMN_TITLES = [
-  'http method',
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'p50()',
-  'p95()',
-  'failure rate',
-  'apdex',
-  'users',
-  'user misery',
+  {title: 'http method'},
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'p50()'},
+  {title: 'p95()'},
+  {title: 'failure rate'},
+  {title: 'apdex'},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
 
 function BackendOverviewPage() {
diff --git a/static/app/views/insights/pages/frontend/frontendOverviewPage.tsx b/static/app/views/insights/pages/frontend/frontendOverviewPage.tsx
index 1270d7ab712307..9a081f2e7a3e4b 100644
--- a/static/app/views/insights/pages/frontend/frontendOverviewPage.tsx
+++ b/static/app/views/insights/pages/frontend/frontendOverviewPage.tsx
@@ -3,6 +3,7 @@ import styled from '@emotion/styled';
 import Feature from 'sentry/components/acl/feature';
 import {COL_WIDTH_UNDEFINED} from 'sentry/components/gridEditable';
 import * as Layout from 'sentry/components/layouts/thirds';
+import ExternalLink from 'sentry/components/links/externalLink';
 import {NoAccess} from 'sentry/components/noAccess';
 import {DatePageFilter} from 'sentry/components/organizations/datePageFilter';
 import {EnvironmentPageFilter} from 'sentry/components/organizations/environmentPageFilter';
@@ -10,6 +11,7 @@ import PageFilterBar from 'sentry/components/organizations/pageFilterBar';
 import {ProjectPageFilter} from 'sentry/components/organizations/projectPageFilter';
 import TransactionNameSearchBar from 'sentry/components/performance/searchBar';
 import * as TeamKeyTransactionManager from 'sentry/components/performance/teamKeyTransactionsManager';
+import {tct} from 'sentry/locale';
 import {trackAnalytics} from 'sentry/utils/analytics';
 import {
   canUseMetricsData,
@@ -47,16 +49,25 @@ import {
   ProjectPerformanceType,
 } from 'sentry/views/performance/utils';
 
+const DURATION_TOOLTIP = tct(
+  'A heuristic measuring when a pageload or navigation completes. Based on whether the initial load of the webpage has become idle [link:Learn more.]',
+  {
+    link: (
+      <ExternalLink href="https://docs.sentry.io/platforms/javascript/tracing/instrumentation/automatic-instrumentation/#idletimeout" />
+    ),
+  }
+);
+
 export const FRONTEND_COLUMN_TITLES = [
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'p50()',
-  'p75()',
-  'p95()',
-  'users',
-  'user misery',
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'p50()', tooltip: DURATION_TOOLTIP},
+  {title: 'p75()', tooltip: DURATION_TOOLTIP},
+  {title: 'p95()', tooltip: DURATION_TOOLTIP},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
 
 function FrontendOverviewPage() {
diff --git a/static/app/views/insights/pages/mobile/mobileOverviewPage.tsx b/static/app/views/insights/pages/mobile/mobileOverviewPage.tsx
index dc98ca6d8c7653..393375c6feb6ec 100644
--- a/static/app/views/insights/pages/mobile/mobileOverviewPage.tsx
+++ b/static/app/views/insights/pages/mobile/mobileOverviewPage.tsx
@@ -51,26 +51,26 @@ import {
 } from 'sentry/views/performance/utils';
 
 const MOBILE_COLUMN_TITLES = [
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'slow frame %',
-  'frozen frame %',
-  'users',
-  'user misery',
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'slow frame %'},
+  {title: 'frozen frame %'},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
 
 const REACT_NATIVE_COLUMN_TITLES = [
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'slow frame %',
-  'frozen frame %',
-  'stall %',
-  'users',
-  'user misery',
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'slow frame %'},
+  {title: 'frozen frame %'},
+  {title: 'stall %'},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
 
 function MobileOverviewPage() {
@@ -124,7 +124,11 @@ function MobileOverviewPage() {
   );
 
   if (organization.features.includes('mobile-vitals')) {
-    columnTitles = [...columnTitles.slice(0, 5), 'ttid', ...columnTitles.slice(5, 0)];
+    columnTitles = [
+      ...columnTitles.slice(0, 5),
+      {title: 'ttid'},
+      ...columnTitles.slice(5, 0),
+    ];
     tripleChartRowCharts.push(
       ...[
         PerformanceWidgetSetting.TIME_TO_INITIAL_DISPLAY,
diff --git a/static/app/views/performance/landing/data.tsx b/static/app/views/performance/landing/data.tsx
index 84833e8ae26af8..171d4acc8de49b 100644
--- a/static/app/views/performance/landing/data.tsx
+++ b/static/app/views/performance/landing/data.tsx
@@ -1,60 +1,60 @@
 export const FRONTEND_PAGELOAD_COLUMN_TITLES = [
-  'transaction',
-  'project',
-  'tpm',
-  'FCP',
-  'LCP',
-  'FID',
-  'CLS',
-  'users',
-  'user misery',
+  {title: 'transaction'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'FCP'},
+  {title: 'LCP'},
+  {title: 'FID'},
+  {title: 'CLS'},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
 
 export const FRONTEND_OTHER_COLUMN_TITLES = [
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'p50()',
-  'p75()',
-  'p95()',
-  'users',
-  'user misery',
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'p50()'},
+  {title: 'p75()'},
+  {title: 'p95()'},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
 
 export const BACKEND_COLUMN_TITLES = [
-  'http method',
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'p50',
-  'p95',
-  'failure rate',
-  'apdex',
-  'users',
-  'user misery',
+  {title: 'http method'},
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'p50'},
+  {title: 'p95'},
+  {title: 'failure rate'},
+  {title: 'apdex'},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
 
 export const MOBILE_COLUMN_TITLES = [
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'slow frame %',
-  'frozen frame %',
-  'users',
-  'user misery',
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'slow frame %'},
+  {title: 'frozen frame %'},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
 
 export const REACT_NATIVE_COLUMN_TITLES = [
-  'transaction',
-  'operation',
-  'project',
-  'tpm',
-  'slow frame %',
-  'frozen frame %',
-  'stall %',
-  'users',
-  'user misery',
+  {title: 'transaction'},
+  {title: 'operation'},
+  {title: 'project'},
+  {title: 'tpm'},
+  {title: 'slow frame %'},
+  {title: 'frozen frame %'},
+  {title: 'stall %'},
+  {title: 'users'},
+  {title: 'user misery'},
 ];
diff --git a/static/app/views/performance/landing/index.spec.tsx b/static/app/views/performance/landing/index.spec.tsx
index d5682aca554c07..687c19a260a089 100644
--- a/static/app/views/performance/landing/index.spec.tsx
+++ b/static/app/views/performance/landing/index.spec.tsx
@@ -198,7 +198,7 @@ describe('Performance > Landing > Index', function () {
 
     expect(columnHeaders).toHaveLength(REACT_NATIVE_COLUMN_TITLES.length);
     for (const [index, title] of columnHeaders.entries()) {
-      expect(title).toHaveTextContent(REACT_NATIVE_COLUMN_TITLES[index]!);
+      expect(title).toHaveTextContent(REACT_NATIVE_COLUMN_TITLES[index].title!);
     }
   });
 
diff --git a/static/app/views/performance/landing/views/mobileView.tsx b/static/app/views/performance/landing/views/mobileView.tsx
index 649ca11f077535..87b2c66f0b1d4c 100644
--- a/static/app/views/performance/landing/views/mobileView.tsx
+++ b/static/app/views/performance/landing/views/mobileView.tsx
@@ -32,7 +32,11 @@ export function MobileView(props: BasePerformanceViewProps) {
   ];
 
   if (organization.features.includes('mobile-vitals')) {
-    columnTitles = [...columnTitles.slice(0, 5), 'ttid', ...columnTitles.slice(5, 0)];
+    columnTitles = [
+      ...columnTitles.slice(0, 5),
+      {title: 'ttid'},
+      ...columnTitles.slice(5, 0),
+    ];
     allowedCharts.push(
       ...[
         PerformanceWidgetSetting.TIME_TO_INITIAL_DISPLAY,
diff --git a/static/app/views/performance/table.tsx b/static/app/views/performance/table.tsx
index 4e220b99915365..a88bbf69a39433 100644
--- a/static/app/views/performance/table.tsx
+++ b/static/app/views/performance/table.tsx
@@ -1,4 +1,4 @@
-import {Component, useEffect} from 'react';
+import {Component, type ReactNode, useEffect} from 'react';
 import styled from '@emotion/styled';
 import type {Location, LocationDescriptorObject} from 'history';
 
@@ -11,9 +11,11 @@ import SortLink from 'sentry/components/gridEditable/sortLink';
 import Link from 'sentry/components/links/link';
 import LoadingIndicator from 'sentry/components/loadingIndicator';
 import Pagination from 'sentry/components/pagination';
+import QuestionTooltip from 'sentry/components/questionTooltip';
 import {Tooltip} from 'sentry/components/tooltip';
 import {IconStar} from 'sentry/icons';
 import {t, tct} from 'sentry/locale';
+import {space} from 'sentry/styles/space';
 import type {Organization} from 'sentry/types/organization';
 import type {Project} from 'sentry/types/project';
 import {trackAnalytics} from 'sentry/utils/analytics';
@@ -55,6 +57,15 @@ import {
   UNPARAMETERIZED_TRANSACTION,
 } from './utils';
 
+type ColumnTitle = {
+  title: string | ReactNode;
+  tooltip?: string | ReactNode;
+};
+
+const COLUMN_TITLES_OPTIONAL_TOOLTIP = COLUMN_TITLES.map(title => {
+  return {title};
+});
+
 type Props = {
   eventView: EventView;
   location: Location;
@@ -62,7 +73,7 @@ type Props = {
   projects: Project[];
   setError: (msg: string | undefined) => void;
   withStaticFilters: boolean;
-  columnTitles?: string[];
+  columnTitles?: ColumnTitle[];
   domainViewFilters?: DomainViewFilters;
   summaryConditions?: string;
 };
@@ -402,7 +413,7 @@ class _Table extends Component<Props, State> {
   renderHeadCell(
     tableMeta: TableData['meta'],
     column: TableColumn<keyof TableDataRow>,
-    title: React.ReactNode
+    title: ColumnTitle
   ): React.ReactNode {
     const {eventView, location} = this.props;
 
@@ -437,7 +448,7 @@ class _Table extends Component<Props, State> {
     const sortLink = (
       <SortLink
         align={align}
-        title={title || field.field}
+        title={title.title || field.field}
         direction={currentSortKind}
         canSort={canSort}
         generateSortLink={generateSortLink}
@@ -451,11 +462,20 @@ class _Table extends Component<Props, State> {
         </GuideAnchor>
       );
     }
-    return sortLink;
+
+    if (!title.tooltip) {
+      return sortLink;
+    }
+    return (
+      <Header>
+        {sortLink}
+        <QuestionTooltip size="xs" position="top" title={title.tooltip} isHoverable />
+      </Header>
+    );
   }
 
   renderHeadCellWithMeta = (tableMeta: TableData['meta']) => {
-    const columnTitles = this.props.columnTitles ?? COLUMN_TITLES;
+    const columnTitles = this.props.columnTitles ?? COLUMN_TITLES_OPTIONAL_TOOLTIP;
     return (column: TableColumn<keyof TableDataRow>, index: number): React.ReactNode =>
       this.renderHeadCell(tableMeta, column, columnTitles[index]);
   };
@@ -479,7 +499,9 @@ class _Table extends Component<Props, State> {
               />
             </TeamKeyTransactionWrapper>
           );
-          return [this.renderHeadCell(tableData?.meta, teamKeyTransactionColumn, star)];
+          return [
+            this.renderHeadCell(tableData?.meta, teamKeyTransactionColumn, {title: star}),
+          ];
         }
         return [this.renderBodyCell(tableData, teamKeyTransactionColumn, dataRow)];
       }
@@ -627,4 +649,12 @@ const UnparameterizedTooltipWrapper = styled('div')`
   justify-content: center;
 `;
 
+const Header = styled('div')`
+  display: grid;
+  grid-template-columns: repeat(2, max-content);
+  align-items: center;
+  padding: ${space(1.5)};
+  grid-column-gap: ${space(0.5)};
+`;
+
 export default Table;