qBittorrent official forums

Global Tracker Non-Working Removal Option Feature Suggestion

Qbittorrent app is my go-to torrent handler. I wish the talented Qbittorrent dev would add an active or working torrent trackers only button to eliminate those that time out, refuse connection, are not working et al.

I see what you mean but sometimes they start working again, so it's kinda hard. Don't worry about them, it won't slow down anything or cause any issues.