Here is a link to HB’s support for Mega Live. At the bottom of the page are recommended starting settings for update 1.20. I just got mine a few weeks ago as well and it worked pretty well out of the box. Now I’ve tinkered with it probably too much and have made it worse. Next time out will try their settings and go from there.
MEGA Live Getting Started
Everything I’ve seen with these FFS is that the further out you get, the fuzzier the bottom. Report back if you’ve found the ideal settings and I’ll try do the same. Of course every situation is different, but what I’ve been told is that you should not have to deviate too far from their recommended settings.