In reply to Alpha Juliet Charlie:
If your toe is going numb, is it being compressed? Are you getting blisters on it? If it's not being compressed, then there's something more complex going on, with some nerve issue.
One way of allowing the lower boot lacing to be looser, whilst still allowing a tight ankle cuff is to tie a surgeon's knot in the laces, as they transition to the ankle (i.e. above the last fixed lacing loops, below the hooks).