Everyone can spot a read. What gives it away is rarely the eyes — it is the rhythm. Speech has uneven pace: you slow down for something that matters, speed up through something familiar, and stop entirely when you change subject. A script scrolling at a fixed speed removes all of that, and the result sounds recited even when the delivery is otherwise good.
The fix is to make the script follow you rather than the other way round. With voice follow, the text moves at the speed you are speaking, which means you can slow down deliberately without falling behind and pause for as long as you like without the words running away.
Two practical things beyond that. Write the script the way you speak: short sentences, contractions, and no clause that needs a second read. And put the text large enough that you are reading a phrase at a glance rather than tracking word by word — the eye movement is what people see, and larger text means less of it.
