Issue Delta between current and previous frame (Vslam) in issac sim

Dear all
issue Delta between current and previous frame (Vslam) in issac sim
I use intel 455 USD file in isaac sim

this my file launch file

I’m having the same issue … the realsense outputs are not the probelm though

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Which version of Isaac Sim are you using?

Could you please check the camera message publish rate from the camera? Do it have normal frequency (say ~30 Hz)?
If the message from the camera has normal publish rate, could you please try to set the image_qos of visual_slam_node to DEFAULT? The default value of image_qos in visual_slam_node is SENSOR_DATA.