Hi,
I think you need some sort of client side movement prediction.
As far as I know, the Chaos Vehicle Movement Component does NOT predict client side movement. On the other hand, the Character Movement Compomemt does the prediction, leading to a smooth movement on clients.
I use the plugin “Smooth Sync” for client side prediction on my vehicles. I can not give you detailed results, because I did not yet fully investigate this plugin. But: My first tests showed less stutter while driving on the client.
Hope this helps, good luck! 