Thanks. I do know that muzzle flitter doesn't hit low, and I usually do optic barrel, but I was autopiloting more than usual for a good lot of that match. Lag in ranked is considerably worse than player matches, as you can't pick your opponent. Still, not an excuse, and it's something I do often in players matches too. I still do fenrir even when it's not a finishing when I'm outclassed, because if I get a good hit in, it's tough to get more, so I just go for guaranteed damage. Also, I can do 22BBBBBBBBB etc. for maybe 10 heat after as well, and sometimes a throw after 2C, both of which give me a bit more room from my cornered opponent. I don't know, since it's my own speculation, but I think it's better pressure. Obviously, I should not fenrir all the time, so I need to learn when not to as well.
I think most, if not all of my problems stem from fundamentals, which is what I want to improve the most.