One of my characters is lagging

Hello!

I got an issue where one of my 4 barbs is lagging when i multibox. The other 3 got the same speed but the other one lags badly. I already set up the d3prefs same for all and i didnt change my old settings in isboxer which used to work. Any input would be much appreciated.

no worries i found out the problem. my processor is running at 100% already. i need to change some settings in my pc. thanks anyways