I'm using a Core i7 980X @ 4GHz. I've noticed that Spiral Knights will max out a single thread and keep it pegged at full load... is there some way to reduce the CPU overhead here? Having the game lag during mob spawns and even the random mob attack is leading to me getting killed in tier 3, and it's just plain irritating this game runs on a single thread only. In very rare cases the game will just randomly "warp" me around until I do a full game restart. Are the non-Steam Spiral Knight accounts still running better, and are there any options to resolve this?

If MY game lags with this CPU at 4Ghz, I'm sure others are having an even worse time of it. All system drivers are up to date, using Windows 7 64bit, latest version of java, et al. Even tried shutting down everything usually left running in the background without any change.

Core i7 980X @ 4GHz
EVGA 480GTX FTW
12GB 1600MHz RAM
OCZ Vertex 3 SSD
Cable broadband

Even with no mob spawned, the game pegs the CPU between 8-9% in Task Manager, which works out to be 100% of one thread. (100/12=8.34%)