If that's the case, and it is working for you guys, then there must be some other issue, like strained H/W (FPS/CPU/etc), a different addon interfering, or some other software on the system.

Most of your character sets (8 out of 11) are using a Round Robin CPU strategy with 1 core. You should use the CPU Strategy Wizard and make sure you select the use all cores for all windows option (the last one on the drop down). This will improve performance for your character sets that are not set to use more than 1 core per game.

Disabling Addons I'll leave to you.

If we need to look further, then the diagnostic instructions are here... http://isboxer.com/wiki/Diagnostics