I have the same problems, but only with some programs and only with the GUI-part. If and when I can get past the GUI the program will run smoothly.
A very good example is two versions of MakeMKV.
The latest version 1.17.2 lags like described above. I uninstalled it and installed an earlier version, 1.17.0 instead, and it runs smoothly.
This is only one example of a handful of programs that behaves like this.
Enhetsnamn DESKTOP-M2IN4D7
Processor AMD Ryzen 5 2600X Six-Core Processor 3.60 GHz
Systemtyp 64-bitars operativsystem, x64-baserad processor
Utgåva Windows 10 Pro
Version 21H2
Installerad 2020-08-11
OS-version 19044.2130
Gränssnitt Windows Feature Experience Pack 120.2212.4180.0