ASIO overload

I am working on a mostly midi (1 guitar track) project using groove agent (currently 1 output), Halion 1, and Halion 4 with 5 racks working (e-pia, bass, strings, 12string auto strum, and 12 string guitar), when I started auto strum, I started overloading ASIO, and of coruse, distorting. I’ve raised the latency (4000 samples, and suprisingly no difference). This is the first time my laptop has come close letting me down. Is there possibly something wrong in my configuration, or is flex-phrase just a super resource hog? :sunglasses: