Lagging when using LevelEditor

[palistov]

Run Task Manager in the background while you edit. See what (if any) program is eating up your processor when the lag spikes occur.

Does your map contain a large number of decals? They can be pretty nasty on performance, as well as simply having a lot of objects in the viewport.


Try updating your GPU driver as well.

Edit: I actually don't see your GPU driver listed. I'm guessing you have a laptop? I just saw an A then 4 numbers so I assumed it was an ATI card haha -- I've always run nVidia. Check which card you have by going to Start > Right click on Computer > Manage > Device Manager > Display Adapter.

Anyways, I checked and it looks like probably got a GT540M in there. I got this from a review site which posted with a different processor (the computer they reviewed was a 5750G but with an i7-2630QM). If you DO have the GT540M, go to nvidia.com and update the drivers. That card also supports Optimus, so if you do have Optimus running on your computer, white-list the HPL2 applications to run with your GPU. I have an Alienware M11X, which has no Optimus so I'm always using my dedicated GPU. Either that, or search for a way to disable Optimus and always run on your dedicated card. If you're like me and are using the laptop at home 99.9% of the time then it won't matter -- Optimus (as far as I know) is only a power-saving feature.