Colin, get a goddamn computer that was actually built in this century. Otherwise, turn the quality to low, turn off anti-aliasing, and make sure you have the latest version of Unity.
@sargent179 Renting them every 24 hours or whatever is pointless; it would be pretty much like buying them, except you would have high HP to actually progress to better guns. They do have to get some source of income, but there's also ad revenue, and I believe that if there were a way to get guns permanently, the devs would not lose their income if there were still premium guns. Also, use some punctuation and capitalization for once! I barely can understand what you're saying.