I have PC I7 8750 ASUS 32 G RAM

It is a gaming PC . Why so slow sometimes How can improve the situation
Slicer version:4102
Expected behavior:
Actual behavior:

What do you do that is slower than you expect? How long does the operation take?

I think i have a solution segmentation geometry then oversampling factor not 1.00 but 0.5 ( less prcise but ok and like a ferari)
what do you think about that