diff --git a/init.bahamas.rc b/init.bahamas.rc
index e6e90bd..506beba 100644
--- a/init.bahamas.rc
+++ b/init.bahamas.rc
@@ -74,8 +74,6 @@ on boot
     write /proc/sys/kernel/sched_latency_ns 5000000
     write /proc/sys/kernel/sched_wakeup_granularity_ns 100000
     write /proc/sys/kernel/sched_min_granularity_ns 100000
-    write /proc/sys/vm/dirty_background_bytes 1024000
-    write /proc/sys/vm/dirty_bytes 10240000
 
     # Assign TCP buffer thresholds to be ceiling value of technology maximums
     # Increased technology maximums should be reflected here.
diff --git a/system.prop b/system.prop
index 07ced16..58564b8 100644
--- a/system.prop
+++ b/system.prop
@@ -69,6 +69,9 @@ dalvik.vm.heapsize=24m
 # Enable compcache
 ro.compcache.default=18
 
+# Lock dirty_ratio to 20 when USB is mounted for improved transfer speed
+ro.vold.umsdirtyratio=20
+
 # Makes HOME ADW / OTHERS to be always in memoory
 pref_lock_home=1