Unity android: notifications and performance

Question

I recently finished my first android game using Unity 3D and C#.

I noticed that whenever the game is running and my phone gets a notification (I am using a samsung galaxy core phone) the game slows down, skips a couple of frames and continues working. This frame skip breaks the gameplay and I need to address this thing right away.

Any ideas why this is and how I should avoid it? I have been using Time.deltaTime whenever I needed to make position changes and I am using the Unity built in physics engine.

Answer 1

You should use FixedUpdate instead of Update when dealing with physics. This way, your physics won't be affected by the performance of the machine.

Answer 2

This is something I have noticed while developing on lower-end devices. Every time the phone starts doing something else on the background than running the game e.g fetching emails or updating software it does a FPS hiccup.

I found no solution for this, except for making the game run more optimized overall to minimize the FPS valley.