I have tried cycling once but have not tried to see if the pedals were too low. If it it, will either have to ride like im on a coaster braked bike or change the frame to a MTB.

You are right, the front braking is mediocre but the rear brake is outstanding. I used to use this style of brake with an electric bike of 24inches wheel and with a pillion I was able to lock the back wheel and thats about 300lbs. Hope that it would supplement the weak front braking.