Update simulator.launch

Author: guisoares9

clover_simulation/launch/simulator.launch

@@ -3,8 +3,8 @@
     <arg name="mav_id" default="0"/>
     <arg name="est" default="ekf2"/> <!-- PX4 estimator: lpe, ekf2 -->
     <arg name="vehicle" default="clover"/> <!-- PX4 vehicle configuration: clover, clover_vpe -->
-    <arg name="main_camera" default="false"/> <!-- Simulated vision position estimation camera (optical flow, ArUco) -->
-    <arg name="maintain_camera_rate" default="true"/> <!-- Slow simulation down to maintain camera rate -->
+    <arg name="main_camera" default="true"/> <!-- Simulated vision position estimation camera (optical flow, ArUco) -->
+    <arg name="maintain_camera_rate" default="false"/> <!-- Slow simulation down to maintain camera rate -->
     <arg name="rangefinder" default="true"/> <!-- Simulated downward-facing rangefinder, vl53l1x-like -->
     <arg name="led" default="true"/> <!-- Simulated LED strip, ws281x-like -->
     <arg name="gps" default="false"/> <!--Simulated GPS module -->