Is there a way to enlarge the screen for Uranium?

[Trainer James]

I downloaded Pokemon Uranium before on another laptop (one which I no longer have access to), and at that time, i thought the screen was smaller than i would like, and i noticed it wouldn't let me maximize it like i would normally maximize a web page. this time that i downloaded the game, the screen is half the size that it was when i had it downloaded on my other laptop.

so is there a way to make the screen bigger? is there a button or two that i can press and hold on my keyboard to zoom in more or something?

also when a character walks towards me, they walk much slower than i recall from when i played this game on my other pc. also the words when people talk goes slower as well. have i possibly downloaded a version of Pokemon Uranium that is a "knock off" ?
i downloaded it from pokemon-uranium.en.uptodown.com