Character speed slows down a lot when the resolution is bigger in the editor

Hey, I have a bit of a problem. I have a basic 2D sidescroller game where my character moves left and right + has the ability to jump. When my resolution is small, the character moves totally normally but when I press 'maximize on play' the character's speed slows down by a huge amount. He basically turns into a snail.

Does this have something to do with the elements scaling up with resolution or what could be the cause? When I jump, I think the character moves at its normal speed no matter the resolution.

 

Are you doing something similar to this:

Xpos += 5; //right

As if you are you should be doing this:

Xpos += 5 * Time.deltaTime;

This way your movement code is frame independent.

 

Ah, I'm indeed not linking it to time. Thanks man!