restore graphics settings

core/ui/gui.cpp

@@ -2382,6 +2382,32 @@ static void gui_settings_video()
 	    	ImGui::Unindent();
     	}
 #endif
+		OptionCheckbox("AudioSync", config::LimitFPS, "Limit frame rate by audio. Minimize audio glitch");
+
+		bool fixedFrequency = config::FixedFrequency != 0;
+		ImGui::Checkbox("Fixed frequency", &fixedFrequency);
+		ImGui::SameLine();
+		ShowHelpMarker("Limit frame rate by CPU Sleep and Busy-Wait. Minimize input glitch");
+		if (fixedFrequency) {
+			if (!config::FixedFrequency) config::FixedFrequency = 2;
+
+			ImGui::Indent();
+			ImGui::Columns(3, "fixed_frequency", false);
+			OptionRadioButton("Auto", config::FixedFrequency, 1, "Automatically sets frequency by Cable & Broadcast type");
+			ImGui::NextColumn();
+			OptionRadioButton("59.94 Hz", config::FixedFrequency, 2, "Native NTSC/VGA frequency");
+			ImGui::NextColumn();
+			OptionRadioButton("60 Hz", config::FixedFrequency, 3, "Approximate NTSC/VGA frequency");
+			ImGui::NextColumn();
+			OptionRadioButton("50 Hz", config::FixedFrequency, 4, "Native PAL frequency");
+			ImGui::NextColumn();
+			OptionRadioButton("30 Hz", config::FixedFrequency, 5, "Half NTSC/VGA frequency");
+			ImGui::Columns(1, nullptr, false);
+			ImGui::Unindent();
+		} else {
+			config::FixedFrequency = 0;
+		}
+
     	OptionCheckbox("Show VMU In-game", config::FloatVMUs, "Show the VMU LCD screens while in-game");
     	OptionCheckbox("Full Framebuffer Emulation", config::EmulateFramebuffer,
     			"Fully accurate VRAM framebuffer emulation. Helps games that directly access the framebuffer for special effects. "