DCS World

DCS World

DCS World > General Discussions > Topic Details
Mhiester Aug 25, 2013 @ 7:07pm
P-51 guns FPS drop?
Whenever either I, or somebody else shoots off the cal .50 machine guns in the P-51, my game turns into a slideshow. Is anyone else getting this problem?

Otherwise, the game runs smooth for me (save for some of those cluster bombs).

It's so bad that it makes combat impossible for the P-51 (except for tricking the enemy pilot into ripping his own wings off)
< >
Showing 1-9 of 9 comments
fearlessfrog Aug 25, 2013 @ 7:51pm 
I've not noticed, but it might be graphics card/driver dependant or most likely system specs. I've certainly read about the guns smoke causing issues before. Things worth trying to help narrow it down would be:

- Try with HDR on or off?

- P-51 Mirror off? (it eats FPS)

- TSSAA off and MSAA <= 4
Mhiester Aug 25, 2013 @ 10:01pm 
Mirrors and HDR don't change a thing (I usually leave them off anyway). I also leave TSSAA off, though where would I change MSAA settings? (it appears there's no AA when I'm running though)

I'm curious how the P-51's guns take so much more out of my computer than any other similar device (Like the 30mm cannon on the A-10)

If the problem is the smoke, is there a solution?

My graphics card is an Nvidia GT555M (it's a laptop card). I have to tone some of the graphics settings down to get a steady FPS. Just seems outrageous as to how much those guns slow things down though
fearlessfrog Aug 25, 2013 @ 10:23pm 
I'm not sure this is a solution but there are a few graphics config changes to try, including replacing the smoke files. It's a long thread but worth a look:


Plus a smoke tweak that may help with the P51 guns - I can't be sure as I can't recreate here but I hope it helps:

Mhiester Aug 29, 2013 @ 11:23pm 
Afraid those didn't help.

The smoke tweak referenced a location in the installation that didn't exist actually. Did the file structure get changed when they updated the smoke and fire effects?
metheluckydonut Aug 30, 2013 @ 5:32am 
It's all about Hard drive speed.
For some reason the smoke effect is not pre-loaded into the RAM and because of that you get huge FPS drops when firing. The only solution would be to install the game on a SSD or a very fast HDD
Try to capture your FPS in you graphics.lua in configfolder C:\Program Files\Eagle Dynamics\DCS World\Config with notepad ++
line 186 max fps 120 (defaul) try 30
Troll Norris Aug 30, 2013 @ 2:25pm 
The biggest FPS eater for me are cockpit shadows
Last edited by Troll Norris; Aug 30, 2013 @ 2:25pm
Mhiester Aug 30, 2013 @ 2:51pm 
I actually already locked the FPS at 30 from before, which kept a more consistent FPS, but didn't change a thing with the guns/smoke

I hope ED fixes the thing with the smoke not being loaded
< >
Showing 1-9 of 9 comments
Per page: 15 30 50

DCS World > General Discussions > Topic Details
Date Posted: Aug 25, 2013 @ 7:07pm
Posts: 9