Tipsy, I get the feeling your trial was a while back, were you using 2.5, or even 2.0?
We released 2.6 a few weeks ago, which improves a lot on stability and performance, especially on the iPad 1.
If you email support with your user ID, we'll be happy to give you another couple of weeks to try it and see how you like it now.
(If the previous version you had was 2.0, you will automatically get an extra month of trial if you update to 2.6)
To be honest, I am surprised you perceive the maps as being slow, especially compared to Gamin or AvPlan!
And you should see what we have in store for the next major release!
(A lot more than just what shagpile has mentioned so far. Some of it we're keeping a secret so the competition will have to wait with copying it until after we release it...)