Edit current HP Regen Formula to [(Current HP Regen Formula)+1% of your max HP]
And maybe: SP Regen Formula to [(Current SP Regen Formula)+1% of your max SP]
Why I think this suggestion would be a good change:
Can’t speak much for SP, since I’m playing a Cataphract, but currently HP scales much harder than HP regen, the more HP you have, the more useless your HP regen becomes, if you need to sit at a bonfire to recover from 0-100 it takes a lot of time. Changing the formula would make it faster / more noticeable / useful.