I had the same problem with the 100 blx esc hitting the lvc to soon, at first I tought it was my batteries zippy 3s 30c 5000, then I bought some new ones arrowmax 5200 mah 3s 55c constant and 110c burst .
I had with the zippy battery a runtime of 8 minutes and with the arrowmax 10 minutes voltage were 3.8 at lvc , and with the zippy even with a full charged battery after a few 100 meters full throttle it goes in lvc mode.
At first I bought a hobbywing max sct for it, but in the end I decided to sell the car and use the esc for my new losi rock rey kit.
The reason to sell it was I run it 40 minutes, did not do grazy stuff with it and broke a front and rear arm, replaced it with rpm, even my tamiya cars toke way more abuse and never broke a arm on them, then the shocks starting to leak and I think the motor and esc are to small for this car so it is eating batteries like grazy because the motor pulling a lot amps to move the car, servo is also crappy, in the end I do not want to chance all those parst, I sold the car with 70 euro loss and spend the money on a castle 1415 2400 kv and a power hd servo for my rock rey kit and have some money left over.
So this was my first arrma car, when I drives, It drives and jump great but there was to many wrong it, had to rebuild the car when I got it gear mesh pinion spur was way to tight so I drilled the holes to give it some room, and the gear mesh between the ring and pinion gear was to tight the gears click like grazy and even when i changed the shim from the crown gear side to the other side they where still not smooth.
I am new to the forum nice forum you have got here