There is no way to build a game on Android that can run at the speed the benchmarks are getting run at on each of the devices "cheating".
What happens if you name your game to match the benchmark that the phone is looking for?
It's more complicated than that
"Unfortunately, what she did falls into our code of conduct," Leah Lauderdale, a spokeswoman for the district, tells Riptide. "It's grounds for immediate expulsion."
More specifically, Wilmot's mini-explosion -- which came after she mixed "common household chemicals" in a plastic bottle -- violates Section 7.05 of the school's conduct code, Lauderdale says, which mandates expulsion for any "student in possession of a bomb (or) explosive device... while at a school (or) a school-sponsored activity... unless the material or device is being used as part of a legitimate school-related activity or science project conducted under the supervision of an instructor."
http://www.fedcoplaw.com/html/Federal%20Explosives%20and%20Bombing%20Laws.dwt.htm
Not obvious to me that what she had qualifies as either a bomb or explosive.
I've noticed several design suggestions in your code.