From 04b6c690837f8afa69ec0e3afcea653229b012f1 Mon Sep 17 00:00:00 2001
From: David Griswold <novachild@gmail.com>
Date: Wed, 5 Nov 2025 15:30:04 +0300
Subject: [PATCH] Default VSync to false on Android

Co-authored-by: OpenSauce04 <opensauce04@gmail.com>
---
 .../citra_emu/features/settings/model/BooleanSetting.kt     | 2 +-
 src/android/app/src/main/jni/default_ini.h                  | 6 +++---
 src/android/app/src/main/res/values/strings.xml             | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/android/app/src/main/java/org/citra/citra_emu/features/settings/model/BooleanSetting.kt b/src/android/app/src/main/java/org/citra/citra_emu/features/settings/model/BooleanSetting.kt
index 11f55d184..ff3bbdf21 100644
--- a/src/android/app/src/main/java/org/citra/citra_emu/features/settings/model/BooleanSetting.kt
+++ b/src/android/app/src/main/java/org/citra/citra_emu/features/settings/model/BooleanSetting.kt
@@ -44,7 +44,7 @@ enum class BooleanSetting(
     CPU_JIT("use_cpu_jit", Settings.SECTION_CORE, true),
     HW_SHADER("use_hw_shader", Settings.SECTION_RENDERER, true),
     SHADER_JIT("use_shader_jit", Settings.SECTION_RENDERER, true),
-    VSYNC("use_vsync_new", Settings.SECTION_RENDERER, true),
+    VSYNC("use_vsync_new", Settings.SECTION_RENDERER, false),
     USE_FRAME_LIMIT("use_frame_limit", Settings.SECTION_RENDERER, true),
     DEBUG_RENDERER("renderer_debug", Settings.SECTION_DEBUG, false),
     DISABLE_RIGHT_EYE_RENDER("disable_right_eye_render", Settings.SECTION_RENDERER, false),
diff --git a/src/android/app/src/main/jni/default_ini.h b/src/android/app/src/main/jni/default_ini.h
index 5bedfa319..35fee46b7 100644
--- a/src/android/app/src/main/jni/default_ini.h
+++ b/src/android/app/src/main/jni/default_ini.h
@@ -134,9 +134,9 @@ use_shader_jit =
 # 0 (default): Game Controlled, 1: Nearest Neighbor, 2: Linear
 texture_sampling =
 
-# Forces VSync on the display thread. Usually doesn't impact performance, but on some drivers it can
-# so only turn this off if you notice a speed difference.
-# 0: Off, 1 (default): On
+# Forces VSync on the display thread. Can cause input delay, so only turn this on
+# if you have screen tearing, which is unusual on Android
+# 0 (default): Off, 1: On
 use_vsync_new =
 
 # Reduce stuttering by storing and loading generated shaders to disk
diff --git a/src/android/app/src/main/res/values/strings.xml b/src/android/app/src/main/res/values/strings.xml
index 078113f12..f60fdd0e3 100644
--- a/src/android/app/src/main/res/values/strings.xml
+++ b/src/android/app/src/main/res/values/strings.xml
@@ -320,7 +320,7 @@
     <string name="hw_shaders_description">Uses hardware to emulate 3DS shaders. When enabled, game performance will be significantly improved.</string>
     <string name="cpu_clock_speed">CPU Clock Speed</string>
     <string name="vsync">Enable V-Sync</string>
-    <string name="vsync_description">Synchronizes the game frame rate to the refresh rate of your device.</string>
+    <string name="vsync_description">Synchronizes the game frame rate to the refresh rate of your device. Can cause additional input latency but may reduce tearing in some cases.</string>
     <string name="renderer_debug">Debug Renderer</string>
     <string name="renderer_debug_description">Log additional graphics related debug information. When enabled, game performance will be significantly reduced.</string>
     <string name="instant_debug_log">Flush Log Output on Every Message</string>