Screen Flash, Audio Cut, Occasional Crashing

So, I've been experiencing this issue for a short while since I tried getting the recent update from EFT, however as of recent, I've been having repeated issues regarding similar issues, both of which are basically game breaking. The first one I had was with audio cutting out at random times. I can't seem to figure out if this is a base game issue, or something else entirely. At the time of writing this, it's like 2AM, so I can't be asked to do it right now since I'm hitting the hay after I post this. Nevertheless, that is something I'll be testing tomorrow, to say the least. This is an issue I consider game breaking since it not only breaks my immersion with the game, and since the game requires situational awareness, sound is a key factor in this game. This is, however, coupled with a secondary issue that I feel may be related to a mod, but I'd like your input on this.

The other issue that arises quite frequently is that when I try shooting at an enemy, my screen will flash back, even under return fire, too. This blinds me and keeps me from really playing the game. This I've seen twice, both of which I added the GaxxWeapons and JustNUCore mod just prior, so I feel it may be tied to that (going to test that before I say for certain).

This isn't the end of it, though. Sometimes, this can lock up my game and lead to a crash. Again, can't tell if this is a mod conflict or not, so I will be testing this when I get on tomorrow, but I do want to know if this is something with SP-Tarkov, Tarkov itself, or something else, if it's possible to identify it?