fps spikes when pressing alt or going new place

[fifis]

whenever i press alt or go in a new place or something similar my fps drops from 60 constant to 20 - 30.
Specs i have:  16gb ram  860m nvidia.
on fights its constnant 60fps and smooth, and also sometimes it just freezes for a second 
anyone had similar problems?

[Amarathiel]

Sounds to me your hard drive is having trouble loading the game assets fast enough to not cause fps drops. Consider cleaning up hard drive, defraging it and if you are using hdd drive, consider switching to sdd drive for better speed.

These things aint gonna work as good as can without constant maintenance :P

[fifis]

i tried to transfer it into ssd but still the same problem