diff --git a/rootdir/etc/init/hw/init.mt6789.power.rc b/rootdir/etc/init/hw/init.mt6789.power.rc
index c600b5c..3d5ec30 100644
--- a/rootdir/etc/init/hw/init.mt6789.power.rc
+++ b/rootdir/etc/init/hw/init.mt6789.power.rc
@@ -71,6 +71,8 @@ on post-fs-data
     write /sys/block/sdb/queue/iostats 0
     write /sys/block/sdc/queue/iostats 0
     write /sys/block/sdc/queue/nr_requests 256
+    write /dev/sys/fs/by-name/userdata/cp_interval 6000
+    write /dev/sys/fs/by-name/userdata/gc_urgent_sleep_time 200
 
 on boot
     # boot perf. tune