So, me and my friends noticed that rapid respawn isn't working as intended. For example:
Baby penguins seems to spawn faster (went there for bestiary), but "more relevant" creatures, like Dark Knights, Lizards, Ice Throwers, etc doesn't.
Also, from my perspective, some of the monsters of the same type and same location seems to spawn faster than their counterparts. I've noticed 2 lizard spellweavers that seems faster than the rest of them. Also, bosses are not spawning faster.

Do you guys have the same impression?

I noticed this as well, I think something happened when they changed the respawn timers on certain monsters.

A level 55 warlock outkills the north or south spawn in the new werebear spawn in culthan ruins and it's supposed to be rapid respawn, so something has to be wrong.

Both keos and villumbs spawns are not happening as intended so called "fast respawn", also spellweavers are not syncd, some are faster than others, maybe you have to check it.
Lizard Guardians still regular respawn as well

Wanu also didnt resp as fast resp. It takes 6 min as normal day.