OYOSOO 2S Remote Control Car Kit

I got this kit and I think I followed all of the instructions properly. The power is working and the remote works but only in short bursts. I am not using the 3.7v batteries. I have tried using both 6v and 9v with the same results. How do I fix this issue? Again, the car moves only in short bursts and intermittently. Distance between the remote and the receiver does not seem to be the issue.

Please provide a link to the cat kit being used. How is an Arduino involved in this kit ?