diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index 20ac5360fd..c0cb875ba2 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -2388,7 +2388,10 @@ void Application::update(float deltaTime) {
         PerformanceTimer perfTimer("squeezeVision");
         _visionSqueeze.updateVisionSqueeze(myAvatar->getSensorToWorldMatrix(), deltaTime);
 
+        // XRTODO: won't this impact performance, especially on slower CPUs?
+        // I think it will also affect OpenVR
         // FIXME HACK: OpenXR doesn't limit the game rate for some reason and wastes cpu time
+        using namespace std::chrono_literals;
         std::this_thread::sleep_for(5ms);
     }
 }