Using lighter power set up, is the first thing, secondly, watching every gram of dead weight during frame construction. I'm already starting to feel a little worried about the AUW of my next one, but, if it will be heavier than planned, it will have much larger flying area of some 36+dm to slow it down even further than my first one at some 26.
We have a serious problem down here obtaining any parts for these type of models to build, so I have to be realistic to use anything on hand.
We just lost the HK after more than a decade of great service to RC hobby so the shortage of parts is becoming an issue.

Halve as light landing gear is a good start.