The icon in the bottom left lets you set replay speed. I found turning off the "tails" made it easier to see what was going on. If you open the boat list on the right - you can select which boats you want to see on the replay.
The trackers are reporting at 5 seconds frequency which explains the rapid relative movements between boats that are close together. SSW are working on a smoothing algorithm for this.
Last edit: 5 years 4 months ago by Mark Elkington.