your syncing is a bit late
when your syncing and ram previewing it, try syncing it five or so frames before the actual sync point
the long flickers were late as well
speeding up near the end didnt really flow well imo
try gradually speeding up the clip instead of immediately
you should try using twixtor instead of time remap. lookin laggy dude
yeah do the glow thing and get some brighter cc
i couldnt tell if you had raytracing on, but if you dont, turn it on