diff --git a/src/qt/qt_main.cpp b/src/qt/qt_main.cpp
index 1a1f71acb..d02ed6b67 100644
--- a/src/qt/qt_main.cpp
+++ b/src/qt/qt_main.cpp
@@ -437,6 +437,9 @@ main_thread_fn()
     int      frames;
 
     QThread::currentThread()->setPriority(QThread::HighestPriority);
+#ifdef _WIN32
+    SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_TIME_CRITICAL);
+#endif
     plat_set_thread_name(nullptr, "main_thread_fn");
     framecountx = 0;
     // title_update = 1;