Performance in Painter 8.2

I have jsut updated to Painter 8.2

The performance is terrible.

The last project I was working on in 8.1 had 17 2k udims, it was fine.

The first object I am working on in 8.2 is just a plane that needs some swirls painted on with height. Extremely simple. The scene has a plane, one texture set, 3 layers masked with some paint mask layers.

After a while painting, about 5 minutes, the strokes are extremely laggy, sometimes freezing the pc.

Moving from 2k to 4k freezes the entire pc for about 3 minutes, gpu at 100%. 

Bare in mind this is just a plane with 3 layers.

I have updated drivers, same result.

Any help would be great thanks

AMD Ryzen Threadripper 3970X 32-Core Processor 3.69 GHz

128 GB ram

2080 ti

Windows 10