This isn't a bug, but a performance issue! Functions cause lag.

I know this is crazy, but I am running a handful of functions that have over 60000 commands and it is causing a lot of lag, not computer lag, but the entities stutter when they move and the game clock seems to be stuttering. I just want to know if there will be any performance updates for functions in the future because for making function mods like this, would be helpful. It doesn't seem to be affecting sounds, blocks (breaking, or particles or functions of those blocks (block updates are almost unaffected)), or crafting. Holding the carrot on a stick triggers the functions.