fluency
Reading accurately, at a suitable pace, with expression, so that you understand.
pacing
How fast or slow you read, matched to the text and your purpose.
gear-shifting
Changing your reading pace within one text, the way a cyclist changes gears on hills.
self-monitoring
Checking your own understanding as you read.
fix-up strategy
A strategy you use when you realize you don't understand, like rereading or slowing down.
dense text
Text that packs a lot of information, technical words or numbers into a small space.