diff --git a/rootdir/bin/init.kernel.post_boot-blair.sh b/rootdir/bin/init.kernel.post_boot-blair.sh
index 78afb07..84c6e4f 100644
--- a/rootdir/bin/init.kernel.post_boot-blair.sh
+++ b/rootdir/bin/init.kernel.post_boot-blair.sh
@@ -82,7 +82,7 @@ function configure_read_ahead_kb_values() {
 	if [ $MemTotal -le 3145728 ]; then
 		ra_kb=128
 	else
-		ra_kb=512
+		ra_kb=128
 	fi
 	if [ -f /sys/block/mmcblk0/bdi/read_ahead_kb ]; then
 		echo $ra_kb > /sys/block/mmcblk0/bdi/read_ahead_kb