For me personally I haven't had a problem running the game at "Epic" with 60 fps (Display cap). I believe that graphics settings need a restart to change, so maybe that's why you are getting 50 fps on all settings?
I tried changing the graphic settings to the ones nvidia recommended and while it ran just as smoothly, it caused my game to crash (lost rendering device) every 30 minutes or so
how do i play mei on offense? i've tried to pick her up a few times but haven't found any success.
guide to playing mei (applicable to all maps, all positions)
1. spray ice like you're having a seizure whenever an enemy appears on your screen
2. after freezing an enemy (which is guaranteed), take 2-3 seconds to stand still and line up a headshot so your frozen victim is forced to see how stupid you look
3. heal and escape whenever someone comes close to killing you so you live forever and keep your ult charged constantly
4. ult literally any time you feel threatened