Firmware and philips PCRW804K

Heej d00dz!

I still have an old philips, see above, and I’m gonna buy another burner.
An asus which is able to burn latest protection schemes.

BUT, Since I’m gonna buy something else I said to myself : ‘why not see if I can get something more outta this old philips ?!’
So I turned my eyes to this forumpart.

Is there a way to crank up the speed or are there any improvements possible ?!
I have firmware 2.0 (which to my knowledge is the latest !)

Greets and lemme know pls !

Version 2.5 is the latest.