Halt! You are under arrest for Orthographic Mistake in the title! (gasp) It's gonna be a 50$ fine, ma' boy ... now type safe, and don't forget, the grammar police is watching you!
But seriously, there's many threads on this already, and there's no MAGIC button in game making, you gotta work hard to get it done, and even harder on mobile because hardware is limited, one tip is to count everything you do, for example, you update a text on start of layout, that shouldn't take much time, maybe 1 millisecond? (I'm probably overextending but eh, just for the suspense), now, then, you see another guy, updating 20 texts every tick, with some math, we can deduct that, he's updating 20 * 60 texts every seconds (fps is probably not the equal to the ticks per second, but just for the sake of consistency), that gives you, 1200 texts updated EVERY SECOND, do that for all your events then tell me how much events trigger every second ... you'll be wowed, there's where optimization comes in, you gotta cut down the Eps, by for example updating texts only when value goes up, or put a value you need multiple times in your calculation into a variable (1 + 5), stuff like that, and you'll see how your performance will skyrocket