Here’s how to turn off the game’s frame rate cap: Ensure you have the latest Nvidia card drivers. For those without mods available though, FPS boost will be great. Those who’ve played Skyrim with an Nvidia card on Windows PC know there’s a little trick to get a bit more power from a Bethesda Game Studios title.Turns out, the trick works on Fallout 4 too. It’s a welcome addition to BC titles, but it seems like there are some better options already out there for some games. If you’re set on having 60 FPS all the time there’s another mod which increases the graphics to ‘ultra’ (not ultra+) which is still miles better than the FPS boost effort, which looks blurry/fuzzy.

There are a couple of occasions where the mod will be less than 60 FPS, but not often and the trade off is a much better looking game with pretty stable FPS. The mod manages to keep the resolution the same and in fact increases the graphics settings while doing it (lighting, draw distance, reflections etc). I can’t understand why they needed to lower the resolution to get 60 FPS using FPS boost.

There’s also a workaround to enable achievements while using it. There’s already a 60 FPS ultra+ Settings mod which keeps the resolution high and increases the graphics settings and also increases the FOV to 90°, looks x10 better than FPS boost, so I’ll be sticking with the mod. FPS boost lowers the resolution noticeably and keeps the settings the same.

Just tried it on Fallout 4, FPS boost is quite poor looking compared to the mods already available.

Fallout 4 fps fix mod