Thank you so much for your feedback!
The message you saw appaears because Unity isn't optimized to run HMTL5 games on phones and it adds a default warning notice; in fact it can happen that on older device the game runs slowly. I tested it on my old phone and sadly the commands are a bit lagged compared to pc version.
Anyway I tried to add a mobile support updating the UI in order to be used with fingers but when I realized the lag I didn't continued to improve it.
