Your question has many different answers, depending on what is your cell design, trx design, etc.
To be simple, just try to increase the intracell ho, then decrease it, and see which one work the best.
Optimization is mostly about trials. You can’t predict what’s going to work the best in such case.
Still, if a HO is triggered, it means there is an issue in the cell. The best idea is to fix the initial problem (remove the interference, etc.)