I'm trying to use an XBox 360 controller to set the goal of an arm with MoveIt! and RViz on Kinetic. I'm able to drag around the end-effector handles very smoothly with my mouse, but when trying to control it with the XBox controller using joystick_control.launch, the FPS drops to 0. How can I improve the responsiveness of RViz so that I'm able to smoothly move the arm's goal with a controller?