I doubt that since it's a service you're paying for and after the transfer means that the service has been completed. click on this link here, take a look at the data center and server, ping as well as trace route the server/data center itself.

Most likely it's not the data center itself but common known issues aka level 3 issues that are your ISP's fault (well known for that kind of problem are comcast/verizon/warner).

Anyways, I do assume you are trying to transfer a level 1 character because there's a restriction on the server at the time. that's typical since it's prime time, however tonight there is maintenance, and if you can find a way, to log in at 3 am (keep an eye on the announcements since it might finish earlier) you should be able to create a character. It will save you the 18 bucks and you can see if you like the server itself, as well as see if your lag consist.

To make it faster, create a character now on any server, save the character creation file and then later tonight after the servers are up, just load that file and all you need to do after is a couple of confirmation clicks. GL