diff --git a/osu.Game.Rulesets.Taiko/Mods/TaikoModEasy.cs b/osu.Game.Rulesets.Taiko/Mods/TaikoModEasy.cs
index d1ad4c9d8d..ad6fdf59e2 100644
--- a/osu.Game.Rulesets.Taiko/Mods/TaikoModEasy.cs
+++ b/osu.Game.Rulesets.Taiko/Mods/TaikoModEasy.cs
@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Mods;
 
 namespace osu.Game.Rulesets.Taiko.Mods
@@ -8,5 +9,16 @@ namespace osu.Game.Rulesets.Taiko.Mods
     public class TaikoModEasy : ModEasy
     {
         public override string Description => @"Beats move slower, and less accuracy required!";
+
+        /// <summary>
+        /// Multiplier factor added to the scrolling speed.
+        /// </summary>
+        private const double slider_multiplier = 0.8;
+
+        public override void ApplyToDifficulty(BeatmapDifficulty difficulty)
+        {
+            base.ApplyToDifficulty(difficulty);
+            difficulty.SliderMultiplier *= slider_multiplier;
+        }
     }
 }
diff --git a/osu.Game.Rulesets.Taiko/Mods/TaikoModHardRock.cs b/osu.Game.Rulesets.Taiko/Mods/TaikoModHardRock.cs
index 49d225cdb5..a5a8b75f80 100644
--- a/osu.Game.Rulesets.Taiko/Mods/TaikoModHardRock.cs
+++ b/osu.Game.Rulesets.Taiko/Mods/TaikoModHardRock.cs
@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Mods;
 
 namespace osu.Game.Rulesets.Taiko.Mods
@@ -9,5 +10,21 @@ namespace osu.Game.Rulesets.Taiko.Mods
     {
         public override double ScoreMultiplier => 1.06;
         public override bool Ranked => true;
+
+        /// <summary>
+        /// Multiplier factor added to the scrolling speed.
+        /// </summary>
+        /// <remarks>
+        /// This factor is made up of two parts: the base part (1.4) and the aspect ratio adjustment (4/3).
+        /// Stable applies the latter by dividing the width of the user's display by the width of a display with the same height, but 4:3 aspect ratio.
+        /// TODO: Revisit if taiko playfield ever changes away from a hard-coded 16:9 (see https://github.com/ppy/osu/issues/5685).
+        /// </remarks>
+        private const double slider_multiplier = 1.4 * 4 / 3;
+
+        public override void ApplyToDifficulty(BeatmapDifficulty difficulty)
+        {
+            base.ApplyToDifficulty(difficulty);
+            difficulty.SliderMultiplier *= slider_multiplier;
+        }
     }
 }
diff --git a/osu.Game/Rulesets/Mods/ModHardRock.cs b/osu.Game/Rulesets/Mods/ModHardRock.cs
index 0e589735c1..4edcb0b074 100644
--- a/osu.Game/Rulesets/Mods/ModHardRock.cs
+++ b/osu.Game/Rulesets/Mods/ModHardRock.cs
@@ -21,7 +21,7 @@ namespace osu.Game.Rulesets.Mods
         {
         }
 
-        public void ApplyToDifficulty(BeatmapDifficulty difficulty)
+        public virtual void ApplyToDifficulty(BeatmapDifficulty difficulty)
         {
             const float ratio = 1.4f;
             difficulty.CircleSize = Math.Min(difficulty.CircleSize * 1.3f, 10.0f); // CS uses a custom 1.3 ratio.