Wiper only works on one speed

I see the brass colored grouns strap at the motor but I also see what looks like fresh paint. Others have lost that ground connection due to paint. And the wiper switch need to be chassis grounded. There's not many parts of these cars that will work right while dangling from the harness connectors.

I guess I will remove the wiper motor and sand the paint behind the motor, see what that does. Or maybe just run a wire to a ground first to see if that is the problem.