NetXMS management console - not responding

[lukejj]

Hi,
I quite often will find that my windows management console will report that it's "not responding" after I've modified a node or tried to re-poll interfaces on a node.  The console will eventually start responding again but it can take up to 5 minutes.

I've just upgraded to the latest release, but prior to this on 1.2.8 it also happened

I have about 100 nodes or thereabouts  - are there some settings that I may need to adjust or customize for this number of nodes?

When I check out the server's CPU when the console is not responding it's about 15-20%

Can anyone suggest some areas to check out to try and resolve this ?
Thanks,
Luke

[lukejj]

I think I got this sorted out.  I found that under "entire network" I had lots of duplicates so I cleared it all out and turned of active discovery as I don't need it.
Now it's running a lot better.