diff --git a/public/client/TracyCallstack.cpp b/public/client/TracyCallstack.cpp
index 0de7c9d2..2202724b 100644
--- a/public/client/TracyCallstack.cpp
+++ b/public/client/TracyCallstack.cpp
@@ -157,9 +157,20 @@ void InitCallstack()
     SymInitialize( GetCurrentProcess(), nullptr, true );
     SymSetOptions( SYMOPT_LOAD_LINES );
 
+    // use TRACY_NO_DBHELP_INIT_LOAD=1 to disable preloading of driver 
+    // and process module symbol loading at startup time - they will be loaded on demand later
+    // Sometimes this process can take a very long time and prevent resolving callstack frames
+    // symbols during that time.
+    const char* noInitLoadEnv = GetEnvVar("TRACY_NO_DBHELP_INIT_LOAD");
+    const bool initTimeLoadModules = !(noInitLoadEnv && noInitLoadEnv[0] == '1');
+    if (!initTimeLoadModules)
+    {
+        printf("TRACY: skipping init dbhelper module load\n");
+    }
+
     DWORD needed;
     LPVOID dev[4096];
-    if( EnumDeviceDrivers( dev, sizeof(dev), &needed ) != 0 )
+    if( initTimeLoadModules && (EnumDeviceDrivers( dev, sizeof(dev), &needed ) != 0) )
     {
         char windir[MAX_PATH];
         if( !GetWindowsDirectoryA( windir, sizeof( windir ) ) ) memcpy( windir, "c:\\windows", 11 );
@@ -214,7 +225,7 @@ void InitCallstack()
 
     HANDLE proc = GetCurrentProcess();
     HMODULE mod[1024];
-    if( EnumProcessModules( proc, mod, sizeof( mod ), &needed ) != 0 )
+    if( initTimeLoadModules && (EnumProcessModules( proc, mod, sizeof( mod ), &needed ) != 0) )
     {
         const auto sz = needed / sizeof( HMODULE );
         for( size_t i=0; i<sz; i++ )