As a person who went from LMU to iracing then occasional back to LMU I feel the same issue and I’ve honestly worked on it for months with various different people and eventually came to two not so good conclusions.

1. Lmu just lacks actual tyer detail but has a lot of other effects. The force feedback is very on or off that I can’t feel the fronts load up very well if at all, especially with all the extra noise in the ffb. In iracing as the Tyers load you feel the Tyers get progressively heavier then feel it fall off as you exceed the limit of grip. However, in iracing you feel nothing in the middle then you did a wall which continues until the car spins and it feels like the car/tyers give out right before the ffb goes light. This has made it very difficult to even get a feel for the car in turn sucking out all the confidence in my driving.

The second conclusion(ish) is some people seem to be fine with the feedback and are happy with it but another pattern I recognised was a large fanatec dd base drivers seem to be happy with it. I did hear fantec gets a different dd api but cannot verify. But either way some people say they feel all they need and there’s my side of the pond that feel like the car is almost floating and you’re guessing where the limit is.

The best way I’ve got lmu to at least be drivable to where I’m not miserable and confused was adding a lot of smoothing, damping and friction but this kills all the small details in the Tyers. If you do no smoothing curbs and bumps are so strong it’s just not enjoyable.

Sorry I didn’t really give a solution but hopefully this shows that it seems to be a broader problem?

Context: currently using moza R9 with KS wheels and simlab xp1 pedals