About global variables and array...

So, I'm listing all the atributes for the player (sprite object), and for now I have 33 global variables referencing the atributes. It seems right, since the player travels through various layouts.

A friend of mine told me too much global variables can impact performance, and that I should use array to store the values.

OK, it makes sense, I think.

BUT if my event for movement is a function like

Input button is pressed >> Move PlayerSprite (SPEED*2) at angle α

(with SPEED now being a global variable)

If I SPEED change it to an array value, it does even make any change? Because the game will have to access the array value every single tick anyways...

Am I overthinking it?

Is it impacting performance though? I've never had a problem with using 'too many' global variables. I think if you have thousands of events you might start to see something. Running through an array every tick sounds worse, like it could be more of a performance drain.