diff --git a/src/app/application.cpp b/src/app/application.cpp
index 83aa0f071..45e6dc43a 100644
--- a/src/app/application.cpp
+++ b/src/app/application.cpp
@@ -847,6 +847,11 @@ void Application::applyMemoryPriority() const
     if (!setProcessInformation)  // only available on Windows >= 8
         return;
 
+    using SETTHREADINFORMATION = BOOL (WINAPI *)(HANDLE, THREAD_INFORMATION_CLASS, LPVOID, DWORD);
+    const auto setThreadInformation = Utils::Misc::loadWinAPI<SETTHREADINFORMATION>(u"Kernel32.dll"_qs, "SetThreadInformation");
+    if (!setThreadInformation)  // only available on Windows >= 8
+        return;
+
 #if (_WIN32_WINNT < _WIN32_WINNT_WIN8)
     // this dummy struct is required to compile successfully when targeting older Windows version
     struct MEMORY_PRIORITY_INFORMATION
@@ -883,6 +888,11 @@ void Application::applyMemoryPriority() const
         break;
     }
     setProcessInformation(::GetCurrentProcess(), ProcessMemoryPriority, &prioInfo, sizeof(prioInfo));
+
+    // To avoid thrashing/sluggishness of the app, set "main event loop" thread to normal memory priority
+    // which is higher/equal than other threads
+    prioInfo.MemoryPriority = MEMORY_PRIORITY_NORMAL;
+    setThreadInformation(::GetCurrentThread(), ThreadMemoryPriority, &prioInfo, sizeof(prioInfo));
 }
 
 void Application::adjustThreadPriority() const