Or,, you could keep an eye on a handlebar mounted voltmeter.
This is good even if you have the cutoff, since its always good to monitor how much the battery sags under load.
Full, you likely see a very small sag, as you near the bottom of your discharge, your battery internal resistance increases. To minimize stress on the cells, use less power as they get nearly drained. One good way to do this at the right time is to notice the sag increased, and back off your throttle till sag under load is back to normal when you started.
Sure,, its far from ideal to depend on watching a voltmeter only. So definitely get the LVC adjusted if you can. But a real voltmeter beats the hell out of the stupid bars on typical displays. Just good to actually know your voltage, and voltage under load, when you run a naked lipo pack.