I have test going on an older machine, dual dual-core 3.6 GHZ Xeon with 12 GB of RAM, 6 150GB RAID 5 15k drives, and gigabit NICs. The VM is of a workstation with a bunch of files to be shared. The host os is windows 2008 R2 running Server 2.01, the guest is Windows XP sp1. While working in the host, the machine seems to stutter, for lack of better description. The display refreshes fine, but when you explore the drives, or go over the network to get to the shares, there is a "pause" that increases with the size of the folder. Small folders will browse fairly quick, but when you open the 1.5 gb folder with zillions of little files in it, it takes 10-15 seconds. The host OS has a copy of the same file structure, and it does not have the same problem. I found if I share the Host OS copy and try to get to it from another device on the network, the issue isn't there, only in the guest OS's shares/drives.
Anyone have a clue on where I can look to troubleshoot this?