diff --git a/Tools/sitl_run.sh b/Tools/sitl_run.sh
index 22f9b57349..64eb973f7f 100755
--- a/Tools/sitl_run.sh
+++ b/Tools/sitl_run.sh
@@ -69,7 +69,7 @@ SIM_PID=0
 if [ "$program" == "jmavsim" ] && [ ! -n "$no_sim" ]
 then
 	# Start Java simulator
-	"$src_path"/Tools/jmavsim_run.sh -r 500 -f 1 &
+	"$src_path"/Tools/jmavsim_run.sh -r 250 -f 1 &
 	SIM_PID=`echo $!`
 elif [ "$program" == "gazebo" ] && [ ! -n "$no_sim" ]
 then