Ultrabullet. I just got adopted on lichess and i'm so pissed off

Have you tried 15 sec ultrabullet games on lichess? I'm wondering how can people move so fast? I'm a fast 1 min bullet player on chess.com I win most of my games on time and I know how to flag people but when I play on lichess, I lose on time all the time. It seems people who play on lichess are faster than chess.com players. why is that? and how can I become a better ultrabullet player? I can't get passed 1700 rating on lichess.

Play moves and you will get past 1700 trust