Every game should get a profiling session. Optimally, you should make it happen regularly by using the archifamous Unity profiler tool. But this tool will often give you misleading results for a reason I'm about to explain. Let's see how to be more accurate using the new Unity Profile Analyzer.

When you profile your game, a few things can happen.
You can find that everything is alright and there's no further action needed. This is rarely the case with any ambitious game.
Often enough, you'll find out that the new feature you implemented is just too …