High FPS but stuttering game-play? Tried every solution in the forum to no effect? Try this:
When I first installed Fallout 4 I noticed that despite a high frame-rate (50-60 fps, 40 looking down on Diamond City), the display was stuttering all over the place. Walking while moving the camera made everything look like it was jumping around. I may as well have been playing at 10 FPS-- but the computer wasn't even breaking a sweat!
Having had similar problems with other Bethesda games I immediately looked to the forums for a solution. The most common solution is setting the Fallout Prefs configuration file (fallout4prefs.ini) "ipresentinerval" to "0" to "unlock" the frame-rate, which it does. However this solution causes ridiculous amounts of screen tearing. Forcing the driver to VSYNC doesn't seem to improve the image much, if at all. So that "solution" was a non-starter-- just one messy screen to another, different, but equally bad messy screen. After trying a few other things I gave up and just dealt with it not displaying properly.
Until I found this solution. "ipresentinterval" is in fact the solution but setting it to "0" can cause all kinds of problems-- VSYNC and animation sync not the least of which. The actual solution is to set "ipresentinterval" to a value of "2", which caps the frame-rate at 1/2 your monitor's refresh rate.
How the solution works: Fallout can be a demanding game even on high-end hardware so if you system can't maintain a solid 60 fps you will have stuttering. If you are like me and see frame-rates between 40-60, setting "ipresentinterval" to "2" will lock the frame-rate at 30 and present a very consistent and smooth image. Trust me, 30 FPS smooth is better than ~60 FPS and stuttering. Plus the added benefit of putting less strain on your system which is ideal for laptops.
There may be other issues setting "ipresentinterval" to 2 but none so far I have determined.
Did this work for you?
Did you find any bugs at interval 2?
Edited by wogz187, 19 August 2018 - 06:59 PM.