DiLLs try running my network optimizer.
If that doesn't help try disabling C-States (script attacthed). Windows 11 has made many changes to the scheduler and might behave poorly with certain CPUs,
with c-states disabled all cores are ready for work at all times but you pay a penalty in idle power draw, so keep an eye on power draw and idle temperature, they will shift instantaneously.
The setting persists across reboot but only applies to the current windows power plan (balanced or high performance, etc), once set it is tied to that plan permanently,
you can revert to default behavior any time with the third script, all scripts should be run as admin (right click > run as admin).
