diff --git a/cfg/per-class/classF_lowdelay.cfg b/cfg/per-class/classF_lowdelay.cfg
new file mode 100644
index 0000000000000000000000000000000000000000..b19555bd1a12fcfa633aa2e3500a015340a4be33
--- /dev/null
+++ b/cfg/per-class/classF_lowdelay.cfg
@@ -0,0 +1 @@
+MaxMTTHierarchyDepthByTidOverrideByQP: 22 322222