JabRef version

Latest development branch build (please note build date below)

Operating system

Windows

Details on version and operating system

Windows 11 21H2

Checked with the latest development build

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

Opening a large database with 15.000 entries (22MB file size) takes about 3 minutes in current development versions. In versions before August 1 it took about 4 s to open the same file (until version JabRef 5.7--2022-08-01--8389254).

Appendix

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