Add XML summary to RNG plug, disable sleep in Desktop, null check update in Terminal

Processes/DesktopProcess.cs

@@ -68,7 +68,7 @@ public class DesktopProcess : Process
             WindowManager.Update();
 
             // Sleep slightly to yield CPU to the main CLI thread (approx 60 FPS)
-            Thread.Sleep(16);
+            //Thread.Sleep(16);
         }
 
         IsRunning = false;

Processes/TerminalProcess.cs

@@ -99,7 +99,7 @@ public class TerminalProcess : Process
 
     private void UpdateDisplay()
     {
-        if (window == null)
+        if (window is null)
         {
             return;
         }