[fedora-arm] Exactly how slow is Fedora 27 on an RP3 ? dnf update takes hours ?

Hi people. Thanks to the powers that be for getting Fedora onto the ARM platforms. I really appreciate your work. I'm wondering if Fedora 27 is really, really slow on a RPi3 or if I'm doing something wrong or ??? I installed F27 Server Arm on an RPi3. The file I used was Fedora-Server-armhfp-27-1.6-sda.raw.xz from https://arm.fedoraproject.org/ via https://download.fedoraproject.org/p...1.6-sda.raw.xz <https://download.fedoraproject.org/pub/fedora/linux/releases/27/Server/ar... The installation was mostly straight forward. Naturally the first thing I do is run #dnf update. Upon pressing return the screen does nothing for 15 minutes. Eventually it comes back saying ~225 packages need updating, 2 need deleting and ~10 need installing. I say yes to this. The package downloads go OK, takes probably 10 minutes. But the Upgrading itself is horribly slow. Like 5 minutes per package, on average. Is this normal or is there something wrong with my RPi3 ? I thought it would be faster than this ? The only thing I can think of is that I'm running it from a 2A power adapter, rather than the 2.5A that is suggested. It seems to run fine though, no errors, etc. Is my power adapter the problem ? Thanks