Learn English – How to describe something that has “just enough” details

Time-consuming:

It was a time-consuming process, so he hired a professional to do it.

Closer to software:

Time-consuming operations should be run in separate background tasks.

Edit: Android calls them longer-running, meaning CPU-intensive and/or blocking:

A Service is an application component representing either an application's desire to perform a longer-running operation while not interacting with the user or to supply functionality for other applications to use. [...] if your service is going to do any CPU intensive (such as MP3 playback) or blocking (such as networking) operations, it should spawn its own thread in which to do that work.

An applicable neologism is humblebrag, a boast couched in self-deprecation. Henry Alford describes it as the false modesty of a plea intended to be met with both awe and sympathy. Humblebrag is attributed to Harris Wittels, a writer for the NBC sitcom Parks and Recreation who Tweets celebrity examples at that handle and has collected them into a book.

A less popular term from a different U.S. sitcom is backdoor brag, from a 2008 episode of 30 Rock. While not as buzzworthy a term, the example used in the episode matches one of yours:

It’s sneaking something wonderful about yourself into everyday conversation… Like when I tell people it’s hard for me to watch American Idol, because I have perfect pitch.”

Update: J.P. Freire in the American Spectator (a politically conservative U.S. magazine) proposes whinebrag, photobrag, busybrag, sorrybrag, and emobrag to capture additional flavors of show-offy self-deprecation. Who knows if any of them will gain currency; he notes the overlap of whinebrag with first-world problems a.k.a. white whines, and the Harvard Business Review lamented the busybrag months ago.