The pacing certainly was generally good. How the criminals conducted their business, though, is a pretty hard thing pacing wise. Logically thinking they would need to operate very fast as there's always a risk of troops arriving to rescue the hostages, but on the other hand not only are Fiona and Benedict tough customers but also I don't think those people were any veteran criminals either. So, in the end they gave the image of taking their jolly time to actually try to get anything out of Fiona.

Lastly, there's no plot a few dynamites couldn't make even better!