diff --git a/src/citra_qt/configuration/config.cpp b/src/citra_qt/configuration/config.cpp
index c6e5647bc..51510291c 100644
--- a/src/citra_qt/configuration/config.cpp
+++ b/src/citra_qt/configuration/config.cpp
@@ -438,7 +438,7 @@ void Config::SaveValues() {
 
     qt_config->beginGroup("Layout");
     WriteSetting("toggle_3d", Settings::values.toggle_3d, false);
-    WriteSetting("factor_3d", Settings::values.factor_3d, 0);
+    WriteSetting("factor_3d", Settings::values.factor_3d.load(), 0);
     WriteSetting("layout_option", static_cast<int>(Settings::values.layout_option));
     WriteSetting("swap_screen", Settings::values.swap_screen, false);
     WriteSetting("custom_layout", Settings::values.custom_layout, false);
diff --git a/src/core/hle/kernel/shared_page.cpp b/src/core/hle/kernel/shared_page.cpp
index e2af01e0d..caf073658 100644
--- a/src/core/hle/kernel/shared_page.cpp
+++ b/src/core/hle/kernel/shared_page.cpp
@@ -121,6 +121,10 @@ void Handler::Set3DLed(u8 state) {
     shared_page.ledstate_3d = state;
 }
 
+void Handler::Set3DSlider(float slidestate) {
+    shared_page.sliderstate_3d = static_cast<float_le>(slidestate);
+}
+
 SharedPageDef& Handler::GetSharedPage() {
     return shared_page;
 }
diff --git a/src/core/hle/kernel/shared_page.h b/src/core/hle/kernel/shared_page.h
index 7b6dc2e06..8ea114a4e 100644
--- a/src/core/hle/kernel/shared_page.h
+++ b/src/core/hle/kernel/shared_page.h
@@ -89,6 +89,8 @@ public:
 
     void SetWifiLinkLevel(WifiLinkLevel);
 
+    void Set3DSlider(float);
+
     void Set3DLed(u8);
 
     SharedPageDef& GetSharedPage();
diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp
index 39ae4c43e..9fc045c81 100644
--- a/src/core/hle/service/hid/hid.cpp
+++ b/src/core/hle/service/hid/hid.cpp
@@ -12,6 +12,7 @@
 #include "core/hle/kernel/event.h"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/shared_memory.h"
+#include "core/hle/kernel/shared_page.h"
 #include "core/hle/service/hid/hid.h"
 #include "core/hle/service/hid/hid_spvr.h"
 #include "core/hle/service/hid/hid_user.h"
@@ -164,6 +165,10 @@ void Module::UpdatePadCallback(u64 userdata, s64 cycles_late) {
     event_pad_or_touch_1->Signal();
     event_pad_or_touch_2->Signal();
 
+    // TODO(xperia64): How the 3D Slider is updated by the HID module needs to be RE'd
+    // and possibly moved to its own Core::Timing event.
+    system.Kernel().GetSharedPageHandler().Set3DSlider(Settings::values.factor_3d / 100.0f);
+
     // Reschedule recurrent event
     system.CoreTiming().ScheduleEvent(pad_update_ticks - cycles_late, pad_update_event);
 }
diff --git a/src/core/settings.h b/src/core/settings.h
index efe637dd4..d1de56349 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -5,6 +5,7 @@
 #pragma once
 
 #include <array>
+#include <atomic>
 #include <string>
 #include <unordered_map>
 #include <vector>
@@ -156,7 +157,7 @@ struct Values {
     float bg_blue;
 
     bool toggle_3d;
-    u8 factor_3d;
+    std::atomic<u8> factor_3d;
 
     // Audio
     bool enable_dsp_lle;
diff --git a/src/core/telemetry_session.cpp b/src/core/telemetry_session.cpp
index da2cfb5c7..8f9073dde 100644
--- a/src/core/telemetry_session.cpp
+++ b/src/core/telemetry_session.cpp
@@ -179,7 +179,8 @@ TelemetrySession::TelemetrySession() {
              Settings::values.use_shader_jit);
     AddField(Telemetry::FieldType::UserConfig, "Renderer_UseVsync", Settings::values.vsync_enabled);
     AddField(Telemetry::FieldType::UserConfig, "Renderer_Toggle3d", Settings::values.toggle_3d);
-    AddField(Telemetry::FieldType::UserConfig, "Renderer_Factor3d", Settings::values.factor_3d);
+    AddField(Telemetry::FieldType::UserConfig, "Renderer_Factor3d",
+             Settings::values.factor_3d.load());
     AddField(Telemetry::FieldType::UserConfig, "System_IsNew3ds", Settings::values.is_new_3ds);
     AddField(Telemetry::FieldType::UserConfig, "System_RegionValue", Settings::values.region_value);
 }