The advice has been, leave this OFF
I’ve been tracking some Arturia software synths and getting some ASIO overloads/spikes - which normally never happens - even on the 32 sample buffer I use. Overall average/maximum load was low, less than 25%. These were just spikes.
Was every 30 seconds or so - and fairly random. Only happened with record monitor ON - was fairly sure it was the Arturia synths (VST3 versions) but couldn’t track it down 100%. Just for fun I switched ON the ‘suspend VST3 processing’. Total ASIO load dropped a few percent but ALL the spikes disappeared. Been running for about an hour without any spikes at all.
Moral is - give that option a try.
Windows 10 - latest versions of plugins etc.