Battlefield slow download

That sounds like it isn't a problem on EA's side but a problem with your home's connection speed.  In order to ensure that your download is as fast as possible try downloading when it isn't a peak internet usage time like after dinner time until around 9:00 PM - it may be best to start the download before you go to bed and let it download while you sleep.  Also download when you or someone else in your home isnot using the internet for anything else like watching netflix or downloading on other computers or playing online because that will take up bandwidth which will make your donwload slower.  Lastly ensure that your PC or console is plugged directly into your router for the fastest connection instead of using wireless to connect to the internet.