I'm trying to develop a module for ISPConfig. In this module I've met a problem: Inserting more than 2.000 elements in a select box, the time to wait to get the control for the list is about 2 (or more seconds). During this time the ISPConfig panel is unresponsive. I'm using a good pc, with 8GB RAM and an i7 processor. What's wrong? Thanks!
Switch off the js selectbox overlay under System > Interface config if it is causing too many resources in your case.