It's not actually stuck at 10%. It's your eyes way of protecting your body from genericness.
Upon launching RoM, your brain sends a chemical called 'Geneterica' to the receptors in the eyes. This takes some time to have an effect, but it's normally they by 10%, it causes progress bars to appear static when they're actually moving.
It's actually a bug. It locks at 10% but keeps going, just give it time.
