I have a problem when I dcc using my mirc it send about half the speed I can send but when let says I use a new copy of mIRC it sends at full speed. So anyone know what may be causing the dcc sending limitation ?

if it's being sent through /fserve it might be ALT+O > DCC > Fserve > Total Max CPS

Nope I'm sending by regular dcc I dunno what could be causing it.