Ok i understand that its takes a long time to make new exp/gold earning system, but i sugest a simple way to make curent system a bit better.
If u loose a round u loose only one x, so if u have x5 and u lost a round u have x4. ofc u need to decrease amount of exp and gold per one tick. I dont think that it will be hard. maybe im wrong. BUT it wil prevent GTX when u lost x, and makes a lot of ppl happy, i hope.