i think its all about your capx and even sheet however ...
-read performance manual (avoid every tick, enable physics / behaviors / collisions = important only when it is necessaire)
-read dont waste your memory tutorial (avoid transparent spaces, optimize your images etc ...)
-if you use ads ... dont show it when the game is runing (show then only in start layout/ game over .... loading status)
-use family and groups (that help me a lot ... believe me)
-pixel rounding to on , webgl to off , sampling to point (spacially for pixalized game),switch all to low quality
and more others tricks and tweks ... it depend on your game