Digikam 3.0.0 from ppa on lubuntu 12.04 on netbook.

When starting digikam with the scan or displaying metadata infobubbles, digikam can take a very long time on some images, especially if you have a slow computer.

A settings to ignore those files in batch actions (unless asked otherwise) and deferred them at user convenience, would be a good improvement for little computer.

Ex: Digikam ressources limit for batch actions/initial scan
skip file bigger than (default)30MB
skip file if processing takes more than (default)10min

Of course, need to add to batch manager an option disable or deferred ressources limit (in first case, processing everything normally, in second, do big things after the small ones)

Reproducible: Always