Observe the spinner as its coming in to you, kiori is best place for this, i have seen some spinners not spinning but a quick drag will get them going again however we are unable to tell if this is the case once cast out. IRL you can feel the spinner working by the tip head of the rods trembling movement.
The blade should be spinning and not dragging forcing the lure to move sideways, too big a hook or too heavy a line can also cause this.
Im using 32 speed at times but depending on current, wind, time of-day. I vary it considerably after the first retrieve to the next one.
I saw one streamer hardly winding in the lure but still catching fish so its up too you to try all and everything in order to get the fish to bite it