Battery 10s on 12s system

So Im upgrading my board but I ended up just getting a new one in parts. The ESC and motor I’m getting are for the backfire g3 plus. problem is that I was buying a battery that is 10s5p for my old board but this new one will need 12s. What will happen performance-wise if I use a 10s on it (specific)

Thanks, if you can help your awesome!

you’ll go slower and have less range calc.esk8.news