Sources of reduced projectile speed?

New slower projectiles is %less speed, is there any other way to slow projectiles down?

New slower proj gem is also MORE instead of INCREASED dmg. As far as your question, no idea. Pretty sure the gem is the only way to slow them done. The couple of nodes on the tree are all increased.

I'd like to point out that a lot of good projectile nodes on the tree have increased projectile speed along with better modifiers. If you're actively looking to decrease your projectile speed, the new slower projectiles is better in every way than it used to be.

This is due to the fact that afaik, there never has been nor is there another way to stack reduced projectile speed. If there had been a way to do that, then I admit that slower projectiles would be worse now. But it's not. It's seriously better in every way. There are short-range ST builds that are rejoicing.

Though actually, I have no idea how ST is affected by the new projectile change. Is it possible for a single projectile from ST to hit an enemy more than once anymore?

Not sure about any new uniques coming out, but this has slower projectiles: