Hi mleentje,
Please use the xournal version that was specifically created for the 2.0Beta software. You can find it in
this thread.
Xournal does not work as good under 2.0Beta then it used to work under 1.7 (see below). However the delay should not be that big. There could be two reasons: 1) you are still using the xournal version for R1.7.1; 2) You did not yet enable the Options->Experimental Update (use Options->Save Preferences to make the change permanent).
I am currently busy with creating hacks for the firmware to add extra functionality, after that I want to have a closer look at xournal again. After enabling the Experimental Update, the display is doing a full-refresh too fast, leading to some delay after pausing for 1 second. Maybe I can 'borrow' some code form the NotePad application to make it behave better, although due to the code-structure of xournal that will not be easy.
I am curious, what is your reason for using xournal and not the build-in NotePad program?