Describe the bug
Opening any OPDS catalog permanently loads all CPU cores up to 90% even without navigating through pages

To Reproduce
Steps to reproduce the behavior:

1. Click on Feedbooks in Catalogs.
2. Start monitor and see high CPU load
3. Click on All Books in Library
4. See normal CPU load ;-)

Expected behavior
No CPU load when unused

Screenshots

Version:

• Foliate version: 3.1.0
• OS/Distribution and version: Ubuntu 22.04.4 LTS
• Desktop environment: GNOME 42.9
• Installation method: Flatpak

Additional context