For those having difficulty with slow responsiveness in the vSphere web client, I have a positive update I'd like to provide. I just switched to a new computer Friday and things are running much more smoothly.

Old machine was a Core2 Duo Intel with 4GB of ram, running on 32-bit Windows 7. Hard drive was also almost full. Everything would run slow in the web client (even though with the old client that was never a problem).

New machine is an Intel i5 with 8GB of memory, and things are running much more smoothly. The wait time after clicking things is drastically reduced. Now I still have my issues with the web client, and think it should be scrapped anyhow, but this is at least making the interaction bearable. If anyone else wants to chime in, what hardware are you accessing vSphere from, and how responsive is it to you?