I don't wish to appear all been there and done that, however I remember being at the stage you are at right now Vince! The first track day where I got my knee down and was totally hooked from there!
From here onwards you are starting to enter the pointy end of riding a motorcycle. Now you are entering the speed zone in which you are actually starting to push the limits of corner adhesion and traction. It is important from here on in to follow the proceding advice.
"Inch by Inch it's a Cinch, yard by yard is very hard"
What I mean Vince is that from here on you will take 1/2 seconds off your lap times for a while, and then tenths from there! The next stage of your riding development is going to take lots of laps, and patience! Don't try and go out and take 2 or 3 seconds off your times in one chunk. Just aim to improve by half a second every time you do a ride day. If you come home achieving that then you have done well. Eventually you will put yr head up and realise you are now travelling faster than you thought you ever could.
I guess to answer the question in a brief statement. Laps. Lots of Laps. Just keep going around, as many times, over as many ride days, at as many different tracks as you are able to afford and get the time to do. This is really the only way to become faster and smoother!

"I hate to advocate drugs, alcohol, violence or insanity to anyone, but they've always worked for me" Hunter S. Thompson.
There are really only two questions in life. 1.Which way do i go? 2.What is the lap record?