If you want to farm a mode, you have to get used to it first.
And also, there's no such thing as "jumping" for keymodes cuz every mode plays completely differently from one another. 10K might help you with controlling your fingers in lower keycounts, but it doesn't help with stuff like high density in 4K or LN releases in 7K (i main 10k and i still cant play 9k for my life, and i can play 18K but i just cant catch the playstyle required for 14K DP)