HEY HOLD THE PHONE
I think your comic is great (heck, I just subbed)! I read about half of it, and there's nothing wrong with the pacing at all, in my opinion.
You should never feel ashamed of taking time to set up characters and build your world. A story without a foundation is just a string of meaningless events, after all.
I'm sure there ARE people who are bored with the lack of action, but that alone is not a reason to change the way YOU want to tell the story. Fans' opinions are just that, opinions. And opinions can be misguided.
Besides, a downturn in likes doesn't necessarily mean people think the story is no longer "likeable". Personally, I don't like a page unless I particularly enjoyed it; if it made me laugh or smile. It doesn't mean I think that page is better than the others; it just means I particularly enjoyed it. And that's mostly thanks to all the pages before it that gave it context.
If YOU are disappointed in the lack of action, though, that's another story. I have the same problem all the time. ^^' I'd recommend looking at your story and seeing what you can cut out, condense, or reorganize to move it along faster.
Like, maybe a certain "funny" part isn't quite as funny as you thought it would be, and you should just get rid of it. XD Or you could break up a long background story into shorter, more mysterious info tidbits that are sprinkled throughout the plot, so that information comes up exactly when it is needed and not before.
It really depends on what you're writing and how, but if you're determined, you'll find a way to work it out.