I've found a lot of bugs in this game. Cars seem to be too slow (compared with Win 10 version) and also two sets of wheels are generated, original ones and HD ones. And it's annoying, because for ex. at Hound nice HD wheels are covered by original wheels. You should also use these HD models from original Rally Point 4, they were much better.
I think the slower cars was intentional. Most of the tracks have a long time to beat, with the starter tracks being easy to beat in 1-2 minutes with a time limit of 3 minutes. It makes it more of a challenge to beat all races. I'm suprised they didn't do the same in rally point 5, which has the same tracks but mirrored in some sort of way.