First, are you using a VPN to connect to the site? If so, changing server locations may help.

Second, there's how many pages you're trying to open at a time. I do not know what the actual number is or the rate at which they need to be loaded to trigger the anti-bot system, but it's possible you're loading too many pages (like details pages) within a short order of time. If this is the case, opening fewer pages, waiting a moment before opening a few more may help you to get around this.

If you're still having issues, it may be worth sending a ticket to the helpdesk so that we can escalate it to our sysop for a more concrete answer (and possibly even solution) to the issue.