RealTime cause system slow\freeze

[amitayb]

Hi,
in general, after making some night works on the network, I use RT to test the changes.
after I open 6 RT windows at the same time, the whole cacti GUI is very slow \ freezing.

is there a concurrent active RT windows limitation?
can I increase the concurrent active RT windows using some tweaks? memory increase etc.

thanks in advance
Amitay