Balance in the online game on a random map.

I'm playing online with a friend in Heroes 3 Complete Collection on a random XL map, but there's often a poor balance. For example, I have: 4 water mills, 3 regular mills, an elven dwelling, a unicorn dwelling, a dendroid dwelling, and a dragon dwelling at my castle. She only has a dwarven dwelling. I'd like to play under equal conditions. The Jebus Cross template isn't interesting because everything is too accessible there, but even there, there are failures, with 2 native castles for one of the players, etc. Maybe there are some maps or other manipulations that would allow us to rely more on our own skills rather than on random chance.