I'm so glad I'm not the only person having this issue, I too have a 9700k with an RTX 2070 Super. As soon as I enter the dropship during the countdown my CPU maxes out at 100% until I land and then throughout the game, it will spike up to 100 again causing me to get rubber-banded, have cursor stuttering, and constant no regs. I've tried literally everything and there seems to be no solution, it's so soul-destroying when you spend £1.7k on a pc and it can't even run your favourite game properly. Please let me know if you do ever find a solution to this problem, hopefully, it will be fixed in future apex updates with optimisation patches, but you never know these days