Tony P:Question. Are you playing back the clips as soon as you place them on the timeline, or are you letting the timeline render completely. Also, Optimization is set to 100 which will cause your timeline to constantly render. Change it to something like 50. If you can upload a sample of your GoPro video to the cloud, I will download and test ...

Tony P: water_bear:I'm having a similar issue. The preview is very sluggish. The nvidia overlay shows me getting 1 FPS. I have a 3080 and turning hardware acceleration on or off has no effect, nor does jiggling many of the other settings. You haven't filled out your user profile with important information, like your computer specs. See mine ...

I'm having a similar issue. The preview is very sluggish. The nvidia overlay shows me getting 1 FPS. I have a 3080 and turning hardware acceleration on or off has no effect, nor does jiggling many of the other settings.