EyMi

Make sure everything is up2date. (Geforce, windows, directx and so on) Check your temps while gaming. Any other background apps running? Also what resolution? Or u have to wait for a patch, feel also free to contact the support, maybe someone from undead labs can help u more.

The FX-6300 is rly weak tbh.. What gpu do u have ? Maybe it can't handle your goal. Is everything up2date? Also make sure u have every required file for mod xyz.

Wouldn't call it high-end, I mean a b250 board with kaby i7k ( u know, u can't use the intel k features on a b250 board.. ), a 1060 with a 60hz screen... That's just a strange mix. The config sounds like a typical pre-built. If so, chances are high u have a low-end/crap psu inside.. Ugh... Anyway, it should run with more fps, since u had no probs before. So, what mods have u removed and how? Low fps everywhere ? Also make sure (so far) all your mods are compatible with each other. Also monitor your sys usage while playing fo4, like ram, vram and so on. Worst case, perform a clean fo4 install... And what exactly ?

Aye, but keep in mind the 970 isn't rly a top pick for your goal. The 970 is maybe a decent gpu, but the frame buffer, 3,5gb + 0,5gb slow ram and the slower interface and so on.. that's not rly a top pick for a tripple screen setup. If u wanna stick to the setup, I would buy a stronger card, but let's try to solve the prob first.

Rest of the rig is a-okay, psu shouldn't be the prob here, seasonic is a top notch brand and the ss-xp is one of the best model's (have the 660 xp2 and it's doing well since 2012). Anything else u could try, well what are your temps? And have you tried different screen cables? Optionally, displayport or different screen ports, if it has 2 hdmi/dvi/dp or so. Also try different drivers, possible driver related and maybe a clean install via ddu.

The 970 is not rly a top pick for your goal... a 2nd 970, aye no. So aim for the 1080 or ti or wait for nvidias upcoming gpu's and grab a gtx with enough ram and bandwidth/memory interface. The psu could also cause the prob, but rly depends on your psu, old, low-end and so on. Soo write down your specs pls.

Resident evil, even re5 and 6 both are great co-op games. And currently playing some metal gear solid again, atm mgs 4. So ya, MGS too, but minus mgs v pp.. wasn't rly happy with the latest one. Also sren, silent hill and tomb raider series.