First let me say thanks. I love this editor!

I often work with a huge amount of opened files. Because of this and other repository needs, I have to use the search recursively on directories. At some time of working the results give me a complete shut up of the right mouse click to use copy/paste and others in the opened files. I really bought a new mouse because of this, while I couldn't believe it to be an issue of npp. But this still happens with several versions until current. Mouse is doing well everywhere else. Starting npp up this is OK again.
Is there a restriction on RAM or something, preventing npp right mouse environment pop up?
I wonder why I have never read about others having this issue. It might be based to Scintilla though.