Yes, your car indeed has the speed sensor. You did not say how many miles are on the car, and you choose not to fill out your profile so I don't know if you are in a climate that heavily uses your a/c system.

IF you have lots of miles on the car in a hot climate, and the belt tensioner is holding the belt snug, then you are looking at one of two or a combination of the two issues:

Either the clutch on the compressor is worn with too much air gap and/or the compressor is worn allowing excessive thrust which causes the speed sensor not to read as it should at all times.

If the belt tensioner is in good shape and properly adjusted, then a replacement compressor is probably the best cure.