Car bouncing between spline meshes

Hello,

I just started to create a racing game in UE5.4 (first game ever, so low expertise). I want it to be an arcade-style game so I want the roads to turn in all directions (E.g. a loop or some sort of spiral). I use splines to create the roads and run into the following 2 issues:

  1. Whenever I give a sideways turn to a road(spline), the car starts to bounce when driving from one mesh to another.
    I´ve seen some other people run into simular issues, but mostly in UE4 and without a direct solution. I was wondering if there is an easy fix for UE5.

  2. Creating loops, spirals, etc. is just painful using splines.
    Is there an option in the spline settings so its easier to do? Or a completely different method without the use of splines?

I know that both issues could be solved if I just modeled the whole racetrack in a different program, but I was wondering if there is some way to adress these issues within UE5. I also think that importing the whole racetrack as a model would have an impact on the performance, but thats just a guess.

I´d love to see some suggestions on what to do.
Thank you in advance!

Jan