Regardless of how many thousands of alerts you see in your Guardian app, these should not slow down your device or take up much storage at all. We actually use a very compact database in order to store this information, so that folks can retain the full history and counts of what firms have been trying to track you. You can verify this by checking the storage on your iPhone device or Android device. The blocking of trackers is happening within the cloud so the processing is not happening on the device and will not drain the battery life either.
For iOS check by doing the following on your device:
For Android check by doing the following on your device:
Learn why Guardian may appear to be using a lot of data on your device, but in fact is not actually.
Blocklists allows you to add hostnames or IPs to block more unwanted connections through Guardian Firewall
Apps or websites may block access when a VPN connection is detected