How to get physics equal on all platforms without substepping?

in my experimental project I do some experiments with hovering vehicles like most of you might know from f-zero or wipeout. The movement depends on pure physics, but I am also working on multiplayer crossplatform between android and windows. I want each client to do their vehicle simulation locally and replicate the results, but the physics behavour depends on framerate and because of android I cannot use substepping.
Which options do I have to achieve equal physics behaviour on each platform without the use of substepping?

Ah btw because I want to keep things simple, I don’t inherit from any vehicle classes, just using a simple static mesh with physics on within my pawn.

Only way I can think of is to limit thre framerate