dynamic loading for sections

is there a solution to load events dynamic to part of section array?
i’ve got more than 200 sections, when scheduler is loading it takes few seconds, when i minimize array to 5-10 sections it speeds up.

maybe i can load only events for sections displayed at current moment, couse i see sth. like 30 sections, to see rest i have to move scrollbar.

Unfortunately it is not possible

thanx for reply.

so the only 1 way to increase load speed is to cache everything, what i need.