"I did not expect this"
What enclosure size and tuning frequency are you using?
5.6 cubic feet and two 4.125" ID ports x 8.25" ducts for an Fb of ~ 32 Hz right?
What is the DCR of that stock LF inductor or do you have a stock one?
"Would there be any sense to try a ME150HS instead of 2235H?"
If you have them then try them