How about this: you're an up-and-coming necromancer, 100% committed to your work. You were hoping to mount your horse on a noble Friesian or Clydesdale and ride off at a brisk little trot.

"The speed of the horse is related to the distance between the character and the cursor," Reddit user FloridaMan156 succinctly declared in a high-traffic post on the D4 subreddit.

Basically, pressing the "spur" hotkey without moving the mouse far enough away from the character will not have much effect. On the other hand, one could move the mouse farther away from the mount and prepare to fly. The source of confusion seems to be that this only applies to mounted movement - in Diablo 4, when you move on foot, you will go at a constant speed no matter where you place the mouse.

"Tfw thought the horse was a junkie, but it was me who was the junkie," user edgyallcapsname wrote of this revelation.

Many commenters were similarly surprised, but some offered further useful insight into the mechanics: FieserMoep plausibly speculated that this was related to Diablo 4's simultaneous development of a controller as well as a mouse and keyboard. The positioning mechanism of the mouse is based on the analog stick. The mouse positioning mechanism could be a nasty approximation of the variable movement of the analog sticks.

This doesn't seem like an ideal solution to speeding up a horse with God's own control scheme, but if you too feel like you're rubbing out a stubborn mule rather than flying on a noble steed in Diablo 4, this tip might help speed things up Maybe this tip will help speed things up.