sysclk: make display change togglable and increase battery life in sleep mode

Source/sys-clk/overlay/src/ui/gui/misc_gui.cpp

@@ -398,6 +398,8 @@ void MiscGui::listUI()
         chargerCurrents,
         false
     );
+    addConfigToggle(HorizonOCConfigValue_OverwriteRefreshRate, nullptr);
+
 }
 
 
@@ -1076,7 +1078,7 @@ void MiscGui::refresh() {
     if (this->context && ++frameCounter >= 60) {
         frameCounter = 0;
 
-        sysclkIpcGetConfigValues(this->configList);
+        // sysclkIpcGetConfigValues(this->configList);
 
         updateConfigToggles();