Problem with witcher 1 enchanced edition

[Mt132]

Hello, i have problem with witcher 1 enchanced edition from gog galaxy. I started game and i am on Kaer Morhen, but i have fps drops i tried to lower graphic settings from high to medium and from medium to low but it didn't help. So on Kaer Morhen i have 100+ fps but if im looking to other direction i have less than 30 sometimes.

My specs:
4gb ram
ssd 512gb
i5 5200u 2.2ghz dual core (turbo 2.7ghz)
radeon r5 m330 2gb vram

 

[Mt132]

So can someone help? I'm above recommended requirments so it should run with stable 60 fps and it shouldn't have drops to less than 30.