I made this post for anybody wanting to install Ubuntu 19.10 Eoan Ermine on his computer and having issues with the install.
I recently installed Eoan Ermine and had some speed issues on a fully potent setup : I7-8700K; GTX 1060 6GB; 16GB DDR4 RAM; 256GB Nvme SSD...
Over all it is a pretty decent setup, while the graphics card is not really powerfull it is enough for Linux.
OK, when you'll start installing Eoan Ermine, you will instantly notice a speed drop comparing to 19.04 or even 18.04.
At first I thought it was because Ubuntu had become ressource-hungry... Nope
I don't know the cause of this speed drop but I got two ways of fixing it:
1.Install 19.04 and then update to 19.10.
Nothing extraordinary but still the easiest way.
2.When Creating the bootable media, you might want to create another partition, casper -rw for persistent storage.
Even though it's empty It increased my install speed by 5-6 minutes. Wich is noticeable.
Hope I helped you and don't hesitate to ask me for further details. Also if you have suggestions you are free to leave a comment.