Thanks for all the ideas folks. Appreciate the response. Got some new things to try out. Hopefully one of them works for me.
After taking some of the advise and trying a few different ways of my own I can now go into dun and do full runs

I can turn on all of my hacks before I go in, except for my vac. Once inside I just kill the first 2 mobs then I turn on my vac and it works like a dream :P I also have working wall hack inside the dun, but I find that sometimes its more or a pain in the *** than helpful. With just a speed hack and no wall I can do the full run in only 1 minute 30seconds more time but with less of a head ache.