I don't know if that's what was meant, but it's a common misconception. Because the cue is almost never level, most side spin shots swerve at least a little. More speed allows less swerve, which looks like more squirt.
pj
chgo
(Exaggerated for clarity.)
View attachment 720259
So if the net effect is apparent more squirt because of less swerveCareful testing has shown that the speed of the shot has very little effect on the amount of squirt.
On a faster shot there is less swerve to the target so there seems to be more squirt. Many people confuse the two factors.
Some people think new (slippery) cloth also causes more squirt but it is the same situation. There is later/wider swerve on new cloth so it looks like more squirt.
Why not just play it as more squirt?