It shoulnd't be faster, certainly on M2 16" fastest charging is only supported on magsafe, though I know this changed on m3. I use both, depending where I place laptop and what I have available, but I mostly stick to the magsafe to keep usb ports free for use. Holding up fine after a year. I'd have thought the usb port was more susceptible for insertion/removal wear than pogopinned magsafe.