Turn up the gain on the subs, keep the crossover the same, measure again, then perhaps try crossing at 80Hz, you have to just experiment with the phase, ideally a flat ( less wiggly as possible) FR which has around a 10dB drop from 20-20kHz.
There is a limit to what you can achieve in a shared domestic room which is largely ‘untreated’ as good as you can and then enjoy.
Keith
Thanks will do when I increase the gain it boosts the 50hz range. Will play around. Cheers.