There is a hidden debug menu that you can finde by searching for “124816" in your Tolino device search. It will open up immediately.
(German) source of Information:
https://www.e-reader-forum.de/t/upda...3#post-2433509
Among others things, you can change the Reader Engine there.
There is also a possibility to make your Tolino respond faster by selecting ART instead of Dalvik in the Developer Options of the AOSP settings.
(German) source of Information:
https://www.e-reader-forum.de/t/visi.../#post-2433773