Have to wait between 5-10 seconds when switching between the tabs of 2 running guests. Guests are Windows 2008 R2 SP1 and the host is WIndows 7 x64 HP z600 with 24GB memory. The VMs use 8GB in total which is well below the reserved limit for the use of host memory.
Sometimes Workstation hangs completely and does not respond and so has to be closed. The guest can sometimes be recovered by reopening them via the Tray program, but usually not successful.
Happy to provide more details, logs and so on.
I will test that on my repro machine and verify. Could you let me know the configuration of the guest VMs?