http://www.primagames.com/games/bloodborne/feature/bloodborne-vs-dark-souls-death-becomes-you

In Dark Souls, speed is not a commonly used term. If you try to finish off a group of enemies too quickly, they'll almost certainly end up taking you down with one or two attacks. You need to approach each enemy encounter with patience, and sometimes run away to separate the enemies and make it easier to combat them. Slow and steady wins the race in Dark Souls, as even fights against basic foes can take awhile because you're constantly dodging or trying to move around to their back side to score critical blows.

That's not the case when it comes to Bloodborne. Combat is much faster, and while you'll still need a heavy dose of strategy to get through most of the battles, you can't take your time and expect to win. Your character moves faster, enemies move faster and your dodging ability and general movement speed are also a bit quicker. If you don't take down enemies quickly, you'll be overrun.

Bloodborne is an entirely different matter. The new Regain System completely changes the logic on offensive vs. defensive play. If you take a hit in Dark Souls, you need to use a healing item to replenish that lost health. However, the Regain System in Bloodborne allows players to regain lost health by performing a spot-on counterattack. The more precise you are with counterattacking, the easier it will be to regain that lost health. However, if you're not precise and attempt to wildly counterattack with no rhyme or reason, you won't regain your lost health and will instead take additional hits during fast-paced battles.

In Bloodborne, weapons have multiple forms. This helps to keep things fresh, and forces players to learn how to use their weaponry. For example, changing the form of some weapons will alter the reach and speed of the item. In the short form, the weapon attacks much faster but inflicts far less damage compared to the slower but longer reaching form. You can also change weapon form mid-combo, which counts as an attack and helps to keep your offense moving quickly. Knowing how and when to change weapon forms is one of the big keys to a successful offense in Bloodborne.

Seems to me that Bloodborne is more of a fast-paced action game from the bolded. You don't have to worry about choosing the right equipment or using slow-paced thought-inducing strategies. Now you are more concerned about combos and parries. 

I did.  Have you played the game?  Speed has nothing to do with whether or not it is an RPG.  Everything I said is still there.