I'm still new to this, but I'm guessing Luc will tell us that the refresh can always stay around 1sec (or as short as practical), and shouldn't be related to lookback period. Maybe I'm missing something though. Is there a reason you linked them together?
Noticed the alert noise and "mark as seen" have been added. Thanks very much!
Side note- your scanner just alerted me of 2 huge loads dumped so far at BTRX XLM/ETH just now. I made a trade on the 2nd one, hoping for a 3rd dump. Worth keeping an eye on