diff --git a/Content.Shared/CCVar/CCVars.Atmos.cs b/Content.Shared/CCVar/CCVars.Atmos.cs
index cc1069b4fc8..0918e86c9e8 100644
--- a/Content.Shared/CCVar/CCVars.Atmos.cs
+++ b/Content.Shared/CCVar/CCVars.Atmos.cs
@@ -71,7 +71,7 @@ public sealed partial class CCVars
     ///     1.0 for instant spacing, 0.2 means 20% of remaining air lost each time
     /// </summary>
     public static readonly CVarDef<float> AtmosSpacingEscapeRatio =
-        CVarDef.Create("atmos.mmos_spacing_speed", 0.15f, CVar.SERVERONLY);
+        CVarDef.Create("atmos.mmos_spacing_speed", 0.025f, CVar.SERVERONLY); // Sunrise-Casual
 
     /// <summary>
     ///     Minimum amount of air allowed on a spaced tile before it is reset to 0 immediately in kPa
diff --git a/Resources/Changelog/ChangelogSunrise.yml b/Resources/Changelog/ChangelogSunrise.yml
index b8f5bafc0e1..6057744bc42 100644
--- a/Resources/Changelog/ChangelogSunrise.yml
+++ b/Resources/Changelog/ChangelogSunrise.yml
@@ -8043,3 +8043,11 @@
     type: Fix
   id: 564
   time: '2024-12-15T10:49:41.190680+00:00'
+- author: VigersRay
+  changes:
+  - message: "\u0421\u043A\u043E\u0440\u043E\u0441\u0442\u044C \u0440\u0430\u0437\u0433\
+      \u0435\u0440\u043C\u0435\u0442\u0438\u0437\u0430\u0446\u0438\u0438 \u0437\u0430\
+      \u043C\u0435\u0434\u043B\u0435\u043D\u0430 \u0432 6 \u0440\u0430\u0437."
+    type: Tweak
+  id: 565
+  time: '2024-12-15T11:58:46.532546+00:00'