Proper resolution settings

[GlineYT]

Would be nice to have performance optimisations for lower end devices, like mine. I believe what is necessary, is resolution setting. Basically the option to have the game run at a lower resolution and then stretch it out across the screen instead of forcing the native resolution of the display. I believe it's ok, since resolution is a lot more forgiving on smaller screens, like phones. E.G. 720p on a PC would look blurry and low resolution, but on a phone it will still look nice and decently sharp. Basically just a way to set resolution so it runs better. (As a percentage of the screen resolution, so it doesn't make the game look stretched/squished and to avoid black bars like you'd have on a PC.