That is very interesting, because our QA also reported performance boosts in some situations, e.g. automation, in few hosts. But in many cases and hosts, e.g. Cubase, the performance went so bad, that the plugin became nearly unusable. I personally was able to reproduce the performance lacks and they were really bad. So, maybe setWantsLayer is still the way to go, but the VSTGUI framework does not handle it right? It would be very appreciated if Steinberg could give some details here, how to proceed to always to get the best performance.