increase key repeat delay a little

src/gui/Window.cc

@@ -185,7 +185,7 @@ void Window::handle_event(SDL_Event & event)
         {
             Key_Statuses[event.key.keysym.scancode].pressed = true;
             Key_Statuses[event.key.keysym.scancode].keysym = event.key.keysym.sym;
-            Key_Statuses[event.key.keysym.scancode].timer_id = SDL_AddTimer(200, Key_Repeat, (void *)event.key.keysym.scancode);
+            Key_Statuses[event.key.keysym.scancode].timer_id = SDL_AddTimer(300, Key_Repeat, (void *)event.key.keysym.scancode);
             handle_keysym(event.key.keysym.sym);
         }
         break;