1/I have loaded lots of plugs ( less or more 150 VST) for my project
2/There are lots of FX windows parked inside tabs (there is only FX window which is diplayed at the same time) --> My project display lags so I want to make a test :
3/I have deleted all plugs but I haven't closed the FX windows --> My project lags exactly the same wave than before !
I think there is maybe an issue with Reaper graphic motor render which calculates the plugs GUI which are not displayed or present...
What do you think about that ?