After update to 0.55.4 window animations are slo-mo

[ad-on-is]

I just updated to 0.55.4 and the window-animations are like in slow motion. Not performance wise, but it seems like the speed parameter is not respected.

hl.curve("rubber", { type = "spring", mass = 0.8, stiffness = 60, dampening = 9 })
hl.animation({ leaf = "windows", enabled = true, speed = 10, spring = "rubber" })

output.mp4

Hyprland 0.55.4 built from branch v0.55.4 at commit a0136d8c04687bb36eb8a28eb9d1ff92aea99704 clean ([gha] Nix: update inputs).
Date: Thu Jun 11 17:10:04 2026
Tag: v0.55.4, commits: 7378

Libraries:
Hyprgraphics: built against 0.5.1, system has unknown
Hyprutils: built against 0.13.1, system has unknown
Hyprcursor: built against 0.1.13, system has unknown
Hyprlang: built against 0.6.8, system has unknown
Aquamarine: built against 0.12.1, system has unknown

Version ABI string: a0136d8c04687bb36eb8a28eb9d1ff92aea99704_aq_0.12_hu_0.13_hg_0.5_hc_0.1_hlg_0.6
no flags were set

[vaxerski]

springs ignore speed, that's how springs work. Up the stiffness for faster animations.

[14lua]

Hey, did this solve the issue for you? I seem to have run into the same problem. Even removing all my animations didn't fix it and everything just appears to be half as fast as it used to be.

[ad-on-is]

yes, I forgot to mark vaxerskis answer as the solution

[wabarTM]

tl;dr mass = 1, stiffness = 878.5, dampening = 59.29

#15495 (comment)

[14lua]

I just saw there was another discussion #15499 about this going on and I have found the solution there! I'll just leave this here in case people might stumble upon this. Have a nice day :)