ProresRAW dead in Premiere Pro

[stiipe]

Hi Guys,

i had to shoot a imagefilm. I did it with my NINJA V - SONY FX3 - PRORES RAW.

Cutting was easy, but thats it. 

My Playback and Render is crap. 

my timline looks like this:

 the nested clips are all with effects and needed. (speed ramp and warp)
underneath the nested clips are statments of the interviewer and while playback - there are always glitching frames/overlay issues, don't know how to describe. While scrolling, suddenly the clip underneath appears or blinks strangly. That is while playback and Render as well. 

I've already tried all render settings, preview settings, resetting all premiere, delete cache. 

did anyone else experience such things?

My PC:
Windows 10

i9 12900K

64GB RAM

RTX3080

BR Stipe