In auto mode rover is really slow but normal in manual mode

When I set my waypoints and start my mission the rover moves really slow.I have adjusted my throttle percentage and cruising speed to 100% and still barely moves but as soon as I take over in Manual all is fine.I calibrated my radio and even tried reversing them but no luck, any suggestions?

@bFaux75,
Please provide both a full parameter file and a dataflash log.
Regards,
TCIII AVD

Sorry but I am brand spanking new to this and have no idea what you just asked me for.

@bFaux75,
You could try reading the Wiki. It has been created to help new ArduRover users.
How to download and analyze tlogs and dataflash logs here
Complete parameter list here
You can use the parameter list download function in Mission Planner to save a copy of your parameters in a file that can be uploaded to this discussion thread.
Regards,
TCIII AVD