Blender interface glitched

Hi, i need some help !!!
My Blender UI acts super weird, and i don’t know why !
-When i click on theses small selection windows, it most of the time instantly close by itself
-Even if it don’t close the selection acts weird as seen on the video linked
-Writing acts weird too, like having 3 seconds of latency between my keyboard and the UI
I tried to re-install blender but did nothing.
Thanks in advance for your help !

https://cdn.discordapp.com/attachments/285639647567282179/830765321777446932/2021-04-11_13-19-42.mp4

Try reset to factory settings. File → Defaults → Load factory settings

Check for preference - setting “limit texture size” at moment freezes blender a lot (bug)