There isn’t an absolute correlation between compression and spin, but the nature of low compression golf balls limits how much spin can be designed into the ball. The thing to understand is that spin in the result of stacking a soft layer over a hard layer. When low compression and soft feel are the goals, the layers need to be softer than they are in high compression golf balls. That soft over soft relationship ultimately means that low compression (i.e. “soft” golf balls) are typically lower spinning than firmer ones. It is possible to make a lower spinning firm ball, but as a rule, the softest balls tend to be the lowest spinning. That’s neither good nor bad, but it is a bit of a double-edged sword. Lower driver spin can mean straighter flight, while low iron spin can make it more difficult to hold greens.