@shnoulle 60 is the original default. Nothing should ever take more than 60 seconds to complete for a webserver that remote users can initiate requests for  (i.e. link stuff that gets looked up by your !GNUsocial server). If it was up to me I'd set it to 30 seconds or something.

oEmbed etc, which in combination with StoreRemoteMedia does remote downloads, has an upper limit anyway on how large files to download (so 30 seconds should be reasonable unless your server is on a really slow connection).