I sent this to your PM and email. Pardon me it you get it multiple times.
Are you familiar with feed rates and options in Mach3? I changed something and the feed is real slow. Even when homing and manual feed. I have a Xylotex controller, if that matters. I've tried just about every G-code I could think of. Re-booting and power cycling either does no good. If you can't think of anything, I'll post on CNCZone.