Good work around, Thanks! Windows Defender on...
Complete: 1266ms
Complete: 1031ms
Complete: 1109ms
Complete: 1063ms
Windows Defender off...
Complete: 109ms
Complete: 125ms
Complete: 110ms
Complete: 109ms

This is my first time ever enabling Windows Defender. Thus I've never experienced this. Is there a way to give mIRC the green light, so Windows Defender can be on without this lag.