No i dno't know why it should be slow. How big are your files ?
and yes, resolving el's for seam is already implemented for @Name'ed components.
More on the way...look in our RHDS jira for seam feature requests and let us know ;)
the files are small most of the time: Between 5 and 10kb. Most of the layout-info is in css and a template, so there is only some simple display-logic left.
PS: resolving seam-el's is great news! Are there any betas planned?! "Summer" is a little vague for a release-date, are there any dates for a pre-release?
alpha is planned for soon ;)
if you could please report steps to reproduce this it would be great (put it in rhds jira)