Premiere Pro - Preview continually freezing

Hi,

I have an issue with my preview on Premiere Pro : it freezes too often and the only thing I can do when it happens is to restart my project, which can be very tedious when it's a big project with a lot to clips to load. The thing is, all seems to be good EXCEPT the preview that is freezing, all the project is usable, I can naviguate as easily as always but I can't have the preview. I've also checked all the performances in the task manager and there is nothing to report, neither my CPU nor my memory reach more than 30%.

So, here is my computer setup :

- CPU : Intel i7-11700F 2,50GHz

- GPU : NVIDIA GeForce 3060 Ti

- 32Gb RAM

And, for Premiere Pro :

- Using GPU acceleration

- Preview in Apple ProRes 422 LT

- Always previewing on the minimum resolution (1/4 on HD and 1/8 in 4K)

Everything is on latest version, my drivers, Premiere Pro...

Thank you for your help !