do you actually use this template (800+ instances?), or is it purpose-built to stress-test?Here are 2 videos I've just recorded and will send them off to the VSL team along with the project files.
VEP 6 project loading time
VEP 7 project loading time
It's the exact same template. doing it this way with disabled tracks gave me the best performance since PLAY uses 1 core / 1 thread per instance. Then in Reaper, I've got a key command / button to enable / disable each track / instances by using MIDI cc 19 on channel 1.