Epicurus

I uninstalled it and the problem did go away. Unfortunately I didn't record the version number of the software before uninstalling. It was ESET NOD32 Antivirus. Let me know if you need any help testing conflicts with it in the future, for now I'll just keep it uninstalled.

I had this issue but only in Multiplayer servers with BattlEye enabled. Completely uninstalling my antivirus fixed that issue and is the one possible solution I can offer. Additionally try out the dev build using the -nologs startup parameter.

I'm using ESET NOD32 Antivirus, turning it off had no effect. Additionally the issue is also present in the dev build and -nologs seems to have no positive effect. Frames are still perfect in singleplayer and non-BattlEye servers in the development build.

Running stable at the moment. Will test Dev with nologs in a few hours. Here are some links to full-sized screenshots. This is just in the editor, I also get constant 30 frames in showcases and challenges. Ultra in Agia Marina Ultra in Airstation Mike Here is in a BattlEye enabled server, using both my usual ultra settings and the low preset. Ultra settings Low settings

I can confirm this issue is only with BattlEye enabled servers. I'm currently on Windows 7 using an Ivy Bridge i5 and GTX 660. Frame drops only in multiplayer and adjusting graphics, even to their lowest settings, has little to no effect. EDIT: The servers I tested actually had BattlEye on. Just tested with a non-BattlEye server and can confirm the lag is exclusive to BattlEye enabled servers. Updated post.