Hi, if your pawn don’t has wheels I would strongly recommend that you use a character instead, because it seems to me that right now you’re taking a pawn and trying to turn it into a character 
If you want to replicate movement of a pawn, then first you can increase the precision of the replicated rotation.
And run the movement logic on the client and server to reduce/eliminate lag due to network latency/update frequency. So when the player inputs something the client will react (rotate) immediately without stutter. Then the server runs the same logic and then replicates it over to the client and all other clients. And because they are running the same logic and if you have increased the precision of the replicated rotation, normally you won’t see any difference.
That described setup above is nearly the same as what the “Character Movement” does automatically (the character movement also interpolates between the current state of the client and the replicated state of the server so there you normally won’t need to increase the precision), so you could directly use a character and save the work.