PS2 very slow unlike other computers

Hi all,
I have noticed that my platesolving via platesolve2 is very slow. It takes about 30 seconds to do the estimating background phase, which on other PCs runs basically instantly. the spiral search is about 2 or 3 per second rather than much faster on other PCs. I am not using an underpowered PC, in fact i’m using an ASI1600 binned with an SSD. Why is my platesolving so slow?

I noticed that if your background is “light” you get to the slower processing state … of course it also depends on image size, my D810A files are slower then my QHY163 files for example …