There’s a lot of is experiencing a “tracking like” issue that we’ve seem to come to the term “judder” when using DX12 and NIS or FSR in toolkit. You can find some threads by searching “judder”.
Are you using DX12? Are you in SU9 or SU10?
We only see this using DX12, DX11 is fine.
Win 11
SU10 Beta
RT5700XT
R7 3700