Suspension sag - options to resolve?

There’s no denying the suspension is way too soft for this vehicle. From catching doors on the curb after loading a passenger through to noticeable listing to the side when filling the cargo box and massive sag and bottom out when fully loading my 4 bike rack, it’s just not working at all for me. The rough riding characteristics (chatter, porpoising) on inner city roads also frustrate me.

Even my BIL who is quite over weight (150kg) caused a significant change in ride height when getting in and out of the car.

What are others doing to combat this?

My guess is aftermarket springs or absorbers, but who is even doing them for this model? I used to run Bilstein coilovers in my old car but I don’t think they are doing any kits for the cx90.

So looking for recommendations to solve this problem. Car is a 2024 MHEV Azumi SP (Australian top trim version)