High speed vector graphics engine. 3.2" TFT Lcd screen.

hi i tried the above library it is much faster wow but.
i do have a problem i use 2 interupts pin 18 and 19 for my speedometer and rev counter

,the code and pins work fine with hennings library , is there anyway to fix this again .
please would be great to use the extra speed i am making a trip computer , for a car ,
i use hall sensors to get trigger from wheel and camshaft , via interupts ,

also i sense inject pulse via a optocoupler , i had all this working on my 128x64 glcd but decided i wanted touch and touch start ,

please please any ideas thanks