Davinci Resolve Help with multiple issues and Optimization

Having some issue with Davinci Resolve, if someone could help me with the issues and maybe with settings to optimise as well?
Timeline scrubbing, works for a wee while then will not update to show the footage, have to save, Close and then re-open to get it to work again. Sometime I would have to do a reboot of the pc too.
When I am exporting, I input the name, choose the location then add to to render queue. When I do the render it will do a small percentage of it, and just won’t do any more no matter how long I leave it. So I have to closed the program, restart the pc then deleted the file that it has already exists. Always the 2nd time it will work.
I am Exporting videos at 4K60
My PC Spec:
Ryzen 9 5950X
32GB RAM @ 3000MHz
ASUS 1080 Ti
Samsung Evo Plus 1TB
I was thinking would I need to up the RAM to 64 or 128 GB, would this benefit me?
Thanks for your help in advance
Baz
Timeline scrubbing, works for a wee while then will not update to show the footage, have to save, Close and then re-open to get it to work again. Sometime I would have to do a reboot of the pc too.
When I am exporting, I input the name, choose the location then add to to render queue. When I do the render it will do a small percentage of it, and just won’t do any more no matter how long I leave it. So I have to closed the program, restart the pc then deleted the file that it has already exists. Always the 2nd time it will work.
I am Exporting videos at 4K60
My PC Spec:
Ryzen 9 5950X
32GB RAM @ 3000MHz
ASUS 1080 Ti
Samsung Evo Plus 1TB
I was thinking would I need to up the RAM to 64 or 128 GB, would this benefit me?
Thanks for your help in advance
Baz