Finally saw it...wasn't so bad, except for the villain
Everything else, even the silly tacked on dirtbike, was forgivable, and some of it was actually good and interesting.
But the villain was just...bad. I mean, apparently early starfleet gave a huge command assignment to a soldier suffering from hellish PSTD and other mental issues. Who happened to crash land on a planet with technology randomly better than ANYTHING the federation has found on thousands of planets they explore.
Who carries a completely unreasonable, unjustifiable grudge hundreds of years for being stranded on a planet...OH WAIT he had a spaceship, no a -fleet- of spaceships that they apparently found and could have left with at any goddamn time? Yes, they needed that little puzzle piece to activate the superweapon portion, but they were hardly "stranded"...the superweapon wouldn't have even been necessary if they'd simply not randomly been weak to bad music. Moreover he obviously figured out how to not only communicate for a rescue, but tap into secret starship journals and other data sources from light years away.
So, the alien tech apparently made him super strong, super resilient, basically immortal...and dumb as a box of rocks?