The new firmware has addressed this, it’s pretty nice now!
the release notes mention improved response in all of the controls, and to me it was immediately apparent. Before, I struggled to get into any kind of flow with the S6 and now I realize that it was this specific issue. I’ve had it for six months and for most of that time it was just sitting unused. I had considered selling it, but wanted to wait for the next firmware update. Good thing I did. After the update it feels like a completely new instrument. Absolutely loving it now.