I started monerod on an AWS EC2 instance of type t2.micro. This means it has 1GB of RAM, which should be enough from what I've read in various places. It is syncing (from scratch) since two days already, and arrived at roughly 60 percent of the block height only so far.

CPU usage is below 1 percent, but memory above 700 MB, so I guess it is swapping a lot.

Do I have to set some specific parameters for runnning better on machines with little memory?

EDIT: I should add that it's an AWS instance from the free tier, if that makes any difference.