new client, new level of unresponsiveness... always... game failing at stress test

1) extrajelek
2) 12:30 pm, tbh, time doesn't matter, everytime there are crazy effect, player moving too fast, crazy combo from either aegis+magma++ or multiple consecutive wildfire proc
3) Japan, utc+9
4) chrome browser
5) both
5a) 4g
6) spiking at regular event (combo, start of pull, etc), at this time, hits doesn't seem like hitting enemies,
7) elite rockhorn summit, tbh, zone doesn't matter, anywhere there are crazy effect, player moving too fast, crazy combo from either aegis+magma++ or multiple consecutive wildfire proc