Those maps are certainly much harder than mine, though a few of them don't feel quite 'slow' slow. Reason why I didn't put out harder maps was to purely test streaming ability, not incorporated streaming ability which requires blending various techniques.
listen to the hitsounds, ultimately you will have to adapt so they sound right
Hitsounds are your friend when it comes to streaming. They will tell you the speed you need to move your fingers. Also, streams with kicksliders (small, repeating sliders) will usually give you the tempo of the stream, so listen closely to those.
With practice you'll be able to hear your mistakes and correct yourself in the middle of a stream (ideally before you start getting 50s and misses).