Added option to synchronize core tick speed to max speed percentage

src/common/settings.h

@@ -210,6 +210,7 @@ struct Values {
                                              true,
                                              true,
                                              &use_speed_limit};
+    SwitchableSetting<bool> sync_core_speed{linkage, false, "sync_core_speed", Category::Core, Specialization::Default};
 
     // Cpu
     SwitchableSetting<CpuBackend, true> cpu_backend{linkage,

src/core/core_timing.cpp

@@ -14,6 +14,7 @@
 #include "common/x64/cpu_wait.h"
 #endif
 
+#include "common/settings.h"
 #include "common/microprofile.h"
 #include "core/core_timing.h"
 #include "core/hardware_properties.h"
@@ -184,10 +185,20 @@ void CoreTiming::ResetTicks() {
 }
 
 u64 CoreTiming::GetClockTicks() const {
+    u64 fres;
     if (is_multicore) [[likely]] {
-        return clock->GetCNTPCT();
+        fres = clock->GetCNTPCT();
+    } else {
+        fres = Common::WallClock::CPUTickToCNTPCT(cpu_ticks);
+    }
+
+    if (Settings::values.sync_core_speed.GetValue()) {
+        const double ticks = static_cast<double>(fres);
+        const double speed_limit = static_cast<double>(Settings::values.speed_limit.GetValue())*0.01;
+        return static_cast<u64>(ticks/speed_limit);
+    } else {
+        return fres;
     }
-    return Common::WallClock::CPUTickToCNTPCT(cpu_ticks);
 }
 
 u64 CoreTiming::GetGPUTicks() const {

src/yuzu/configuration/shared_translation.cpp

@@ -71,6 +71,11 @@ std::unique_ptr<TranslationMap> InitializeTranslations(QWidget* parent) {
               "faster or not.\n200% for a 30 FPS game is 60 FPS, and for a "
               "60 FPS game it will be 120 FPS.\nDisabling it means unlocking the framerate to the "
               "maximum your PC can reach."));
+    INSERT(Settings, sync_core_speed, tr("Synchronize core speed"),
+           tr("Synchronizes CPU core speed to game's maximum rendering speed, which can be useful to "
+              "increase FPS without increasing the actual speed of the game (animations, physics, etc.)\n"
+              "It's up to each game if it plays well with this or not. Most games (specially original ones) "
+              "simply ignore this.\nThis can help play the game stutter-free at a lower framerate."));
 
     // Cpu
     INSERT(Settings, cpu_accuracy, tr("Accuracy:"),