A co-worker has worked several days with the same project (same opened session). Day after day, the menu items took more times to be opened. After a few days, it was unbearable, I closed the project and started a new OpenJUMP and menus were fast again.
I cannot reproduce the problem though.
Particular context was :
- layer manager contained WMS layer, RunDatstoreQuery Layers, vector layers, the person opened many attribute windows without closing them.
I tried to reproduce this context but could not reproduce the slowdown.