Well, post W11 23H2 i had a lot of stuttering and some quite lows for 1% FPS
Doin what's mentioned in this article really helped me.
As in, i run ED limited to 60 FPS. And i had noticeable stuttering while Nvidia perf overlay was showing 99% FPS varying between 18 and 45 with a prevalence for the lower numbers (18-30)
After doing those commands below (except for bios virtualization setting which was not touched on my laptop - but i did reenable core isolation), my 99% FPS are in the range of 45-57 with a prevalence for the 54-57 range.
Gamers have reported that their games are suffering from stuttering and glitches after the 23H2 update, but a fix is at hand.
www.xda-developers.com