Try for example Leads -> LD Festival 1, 2, 3 and trigger/play them quick. 70% on an i9! almost 80%.
And sorry. The setup is OK. Have tried also with LatencyMon and it said it's nice.
Every synth run smooth under 10% CPU even with 12,4 ms (256 Samples) Asio Buffer Size.
With Avenger i need to set the Asio Buffer Size to 47,7ms (1024 Samples).
I got the information, that Avenger run Multicore. But that answer can you get from someone else. I'm not sure about this.
Btw. I am actually working on version 1.4.7 VST2. Above doesnt really run smooth here.
Sorry, if it can not always be praise. The synth is awesome. But unfortunately way too CPU intensive.
And I think that it can be optimized.