Many texts contain language (figurative and literal) that can be a barrier to comprehension. We need to see those language walls and teach students how to scale them so their reading has meaning.
Listening to your child read aloud — though for longer times and without the timer — can be good practice for fluency and comprehension. Ask questions about the text, and repeat the reading if your child struggles with word recognition, pace, or expression. And always be positive and encouraging.