When editing a long query where text is overflowing off the screen, scrolling through the query is inconsistent and often gets stuck for me. Others have worked around this by making the query field wrap long queries to multi-line which I prefer as it always shows the full query on screen and there is nothing else on the screen anyway.
I've attached a screen capture but I can't figure out how to make my touch / swipe actions visible, if someone knows how to do that, please let me know.

Smooth, consistent text scrolling in the query field.