Audio-EQ causes browser slackness and freeze on CSS transitions

[Arlyss]

I'm developping a website where a DIV [containing a youtube embedded player (without auto-play)] is displayed/hidden, using a transition (changing the DIV height which have the "overflow:hidden" property).

When i display/hide this DIV, the transition works fine,
but each time i switch the display/hide, the browser slow-down a bit more.
After some switches, the browser freeze.

In Developper view (performance tab), i see that the problem come from
the extension "Chrome-Audio-EQ", i disabled it, and all was working fine again.