Hi Roy,
For partial image:
Minimum image size for proper slider image generation is 658 x 300
Rotation:
The rotation is automatic, try the following:
1) Go to control center -> Save settings
2) Disable third party plugins and repeat step 1
3) If the above don’t work then disable all plugins -> Reset control-center settings -> turn on slider -> enable plugin one by one to see if any of them is conflicting.