
First of all I would like to say hello since I am brand new to the forum

Secondly I would like to mention that English is not my native language and I apologize already for any mistakes

So now to the topic.
I have recently received my Odroid Go and I am very happy with it. The emulators are great

But now I want to try to program a game and I read up a bit and tried to get something running with copy paste. Unfortunately I'm not that experienced in C programming so I'm not really doing well at the moment

At the beginning I had difficulties to update the screen fast, but then I found this library:
https://github.com/lovyan03/LovyanGFX
With this library it works better, but I think I use it completely wrong.
I wrote a small program that stores single tiles in an array and then displays them on the screen. The whole thing even works, but somehow it is a bit slow.
Could you possibly tell me where I could improve something or what I can read through so that I understand the whole thing better?
Here is my code:
https://github.com/Zer0Dev/Odroid-Go-Game