Hi,
I can confirm this behaviour. I faced performance issues since weeks with BatchPatch (GUI slow response, high CPU usage). This forum discussion here give me the idea what is the reason for it.
I can reproduce it like this:
Add “only” 20 servers to list. Start pinging all. Everything still fast. If you click any row everything reacts fast (Clicking any grid row results in fast selection of the grid row – if you click another this is also selected/highlighted fast). Start checking for updates. It gets little slower, but this is acceptable. Starting to query the pednig reboot status. Column “Pending Reboot” is now visible. If you now click any grid row it is slow. Until the grid row gets selected / highlighted it takes sometimes seconds. The CPU usage increases while clicking around. If you hide the row it is fast again. It looks like it is also fast if you make the batchpatch window smal and the column “Pending Reboot” is not shown (need to scroll right).
Hope this will be fixed soon!
Regards,
Stefan