CS2 Cheats Forum
FPS Drops and Overlay Stutter With Cheats CS2
Close extra overlays, cap background apps, and match in-game resolution before blaming the loader for frame hitches.

Discussion
Stutter was Discord overlay plus a stat tracker plus the menu. Closing the extras fixed it before I touched Windows settings. Fullscreen borderless stayed.
If FPS is fine in vanilla CS2 and bad with the menu open, scale ESP down first. Status on the Patch-day status still matters on patch days.
ace
overlay pack from steam was the culprit. one toggle off, frames back.
kira
laptop on battery mode throttled. plugged in, problem halved.
quinn
skeleton plus glow in a 5v5 smoke fight was slideshow. turned glow off permanently.
milo
thought loader was broken. was actually geforce overlay recording.