When updating more than one app, I notice the updater initially downloads all the apps before installing them. This is fine if you have a very limited number of apps, but I found it quite annoying sitting through a long wait (especially so when the download speed dropped to 30 kb).
Hence, I have a solution. Since it takes longer to download than to install an app, why not use that time to install the prior downloaded app (eg. install the first app while the second app is being downloaded)?
iirc it's a limitation of NSIS (which is the scripting language the updater is using) it can only do a limited of functions pertaining download and installing. I don't think it can download and install while downloading the next app, for something like that the whole updater has to be recoded in another language in order to function the way you want.
your friendly neighbourhood moderator Zach Thibeau