diff --git a/main.py b/main.py
index 15bc254..0969e93 100644
--- a/main.py
+++ b/main.py
@@ -31,7 +31,7 @@ def run(self):
             
             if self.randomize_interval:
                 # Randomize the interval between 80% and 120% of the original value
-                current_interval = self.interval * random.uniform(0.8, 1.2)
+                current_interval = self.interval * random.uniform(0.4, 1.8)
             else:
                 current_interval = self.interval
             
diff --git a/ui.py b/ui.py
index 4f42549..137c15c 100644
--- a/ui.py
+++ b/ui.py
@@ -25,7 +25,7 @@ def setupUi(self, MainWindow):
         self.centralwidget.setObjectName("centralwidget")
         
         self.horizontalLayoutWidget = QtWidgets.QWidget(self.centralwidget)
-        self.horizontalLayoutWidget.setGeometry(QtCore.QRect(20, 20, 561, 421))
+        self.horizontalLayoutWidget.setGeometry(QtCore.QRect(20, 20, 561, 461))
         self.horizontalLayoutWidget.setObjectName("horizontalLayoutWidget")
         
         self.horizontalLayout = QtWidgets.QHBoxLayout(self.horizontalLayoutWidget)