Hello stripe, the pinta is actually made to be slow and punchy if you want faster than the Santamarķa is the option.
Its true That the pinta get a little louder over 8 volts, but its purpose is basically to run between 5.5 to 7.5 volts
over 8 volts you do get more speed but you Also get too much power.
Im Glad you can get thr feel of it!!!
Thanks! Roman