Wait...so you think it's inversely proportionate?
Is that because a faster offense uses less passes per possession?
Something like that. The pace of the offense basically sets the threshhold of how good/bad a shot must be before the player will shoot - so a slow offense will have a higher requirement for the shot and will therefore tend to pass more frequently on shots that might be attempted in a faster offense. When your offense is much better than the opposing defense and you don't have bad offensive flow, even a slow offense will put up a shot relatively quickly, while an outmatched offense will still end up exhausting the shot clock and jacking one up late in a fast offense.
So where flow comes in is that if your team has poor passing, those decisions to keep passing are less likely to create a really good shot but are much more likely to create a turnover. So of course, you may not have good shots, but a bad shot is still a better outcome than a turnover, so you try to force more shots.