android: settings: Use mailbox vsync by default.

src/android/app/src/main/jni/config.cpp

@@ -210,7 +210,6 @@ void Config::ReadValues() {
     ReadSetting("Renderer", Settings::values.speed_limit);
     ReadSetting("Renderer", Settings::values.use_disk_shader_cache);
     ReadSetting("Renderer", Settings::values.use_asynchronous_gpu_emulation);
-    ReadSetting("Renderer", Settings::values.vsync_mode);
     ReadSetting("Renderer", Settings::values.shader_backend);
     ReadSetting("Renderer", Settings::values.use_asynchronous_shaders);
     ReadSetting("Renderer", Settings::values.nvdec_emulation);
@@ -222,6 +221,10 @@ void Config::ReadValues() {
     Settings::values.gpu_accuracy = static_cast<Settings::GPUAccuracy>(config->GetInteger(
         "Renderer", "gpu_accuracy", static_cast<u32>(Settings::GPUAccuracy::Normal)));
 
+    // Use Mailbox VSync by default on Android.
+    Settings::values.vsync_mode = static_cast<Settings::VSyncMode>(config->GetInteger(
+        "Renderer", "use_vsync", static_cast<u32>(Settings::VSyncMode::Mailbox)));
+
     ReadSetting("Renderer", Settings::values.bg_red);
     ReadSetting("Renderer", Settings::values.bg_green);
     ReadSetting("Renderer", Settings::values.bg_blue);

src/android/app/src/main/jni/default_ini.h

@@ -316,7 +316,7 @@ max_anisotropy =
 # FIFO Relaxed is similar to FIFO but allows tearing as it recovers from a slow down.
 # Mailbox can have lower latency than FIFO and does not tear but may drop frames.
 # Immediate (no synchronization) just presents whatever is available and can exhibit tearing.
-# 0: Immediate (Off), 1: Mailbox, 2 (Default): FIFO (On), 3: FIFO Relaxed
+# 0: Immediate (Off), 1 (Default): Mailbox (On), 2: FIFO, 3: FIFO Relaxed
 use_vsync =
 
 # Selects the OpenGL shader backend. NV_gpu_program5 is required for GLASM. If NV_gpu_program5 is