Quote:
Originally Posted by kovidgoyal
If you think its because of calibre 5, dwngrade to calibre 4.23 and see if the problem goes away.
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Thanks for your advice.
I first tried Library maintenance > Check library and applied all fixes and deletes. It didn't really help improve the situation.
Then I tried downgrading to 4.23 but the problem unfortunately persists. I then backed the library, reinstalled it anew, and noticed that Calibre runs fast at the beginning. But as soon as I import back the library backup, it becomes slow again.
In the end, I reinstalled Calibre and started a new library. I manually loaded all the books again. Now it is running smooth and fine.
I realised in the library directory folder there is now a ‘metadata.opf’ that comes with the newly load files and books. It wasn't there before in the directory with any of the books I had from the old library. Not sure if that was a cause to the problem I experienced.