Unable to remove bombers who move rapidly around the scree and participant list

Our AA group has been dealing with a new problem regarding Zoom bombing. When we try to click on their name on the participant list or their image on the screen to kick them out, they jump around the participant list and the view tiles. We had to wait until the image moved to where the cursor was to grab them. We How do we get their image and name stopped/still so that we can remove them out of a meeting?