WindowServer high CPU usage while displaying fullscreen content (after Monterey update)

Hello Apple Support Community,

I use a Macbook Pro 13 2020 i5 16 GB RAM.

Ever since I upgraded to Monterey, I have troubles with WindowServer process using too much CPU power. I have no problem watching videos in normal mode, but when I go fullscreen, after around 1 minute, laptop temperature goes around 80 degree Celsius. Activity Monitor shows WindowServer using ~120% CPU. I get this problem while using Firefox and Microsoft Teams; Safari is so far okay. Weird thing is quitting the program won't do anything, WindowServer continues to use CPU around 100%.

Is there anything I can do besides doing a clean re-install of OS?