Well, the game itself runs pretty good on higher settings, but i also tried lower settings, lower resolution and windowed mode, none of them helped.
The main issue is that I don't know why answers disappear right after they appear (I mean literally less then a second after they appear) and why they started now, in Episode 5, while previous 4 episodes were working like a charm, but now they have this issue too. After some reinstalls (I even did full registry cleaning too with 2 programs. Well, the second didn't find anything relevant, but still), the problem is still there, so I really don't know the issue. I tried running it right after laptop restart, so theoretically many programs weren't running. I'll try in offline mode too, though I doubt it would help. I have enough space, 100+ GB on Drive D, 17+ on C and I also use flash drive for readyboost to help with caching. (But it's not the issue, as it is like that without readyboost too).
I just really can't figure what could cause it. The game runs good, there were no problems in previous episodes (I haven't reinstalled Windows since I played Ep. 4), but not this issue is present suddenly in every episode. But I guess the issue must be at me, since I didn't find anyone with this same issue. Well, I give it a try, closing down every program, even antivirus, to see if it helps, though I would be surprised. But I won't know for sure unless I tried.
Thank you for the reply, and I'll post my results.