Here is a smoothscrolling tilemap test i found:
Scroll by 2px @ 6MHz

Scroll by 1px @ 6MHz

Scroll by 1px @ 15MHz

Yes, that is a BASIC program calling xLIB functions, the same as before.
Smoothscrolling wasnt even possible in the old xLIB, and even if it was it would have been at a VERY low fps. 1.0 is about 15-20 times faster as an estimate.
That said, all there is in 1.0 is the tilemapper, sprite and getkey + other functions to speed up stuff.