If you are using versaworks, there are options for perf pressure and perf length, its hard to tell by the image if the burred edges are from just a bad cut or the perf length being too short. Check your cutter protection strip as well, if it's looking like the grand canyon that isnt going to help your situation.
If it's old enough, the blade holder itself gets stiff and doesn't rotate like it used to, and can cause bad cuts as well, usually around corners and curves though.