Performance would be the same, but there would be a delay before reaching peak
suction, so it would appear as a performance loss. Your machine is vac optimised
so ideally you do not want to go above 1.5".
Switching to non hide a hose may help slightly, but the solution hose doesn't affect
performance very much.
Those other machines are air optimised due to vacuum motor configuration so 2" is
the ideal size hose, they shift more air, you shift less at higher suction.