I got bit by the esxi and vRanger "SLOWNESS"

Yeah, so I am thinking we are all good. Updated our esx's to esxi 4.0 and with the new vRanger 4.5 I thought we were ready for some nice 15 min backups as what we were getting prior to the upgrade. Now BAM, one hour backups!!!!! WOW! So I thought everything but vRanger was the problem, but after today I just found this out.

Okay so now what have you guys done that are in the same shoe or am I the only clueless person in this situation?

Any advice is appreciated