Is this correct? What does it mean and can it be rephrased? “Thank you! But you can pause it at interval to read up. If I had slowed down with the picture slides, the duration of the video would be longer than this”

The original sentences seem to convey gratitude and clarify that the viewer can pause the video to read at their own pace. It also suggests that if the speaker had taken more time with the picture slides, the video would have been longer. Here's a rephrased version for clarity: "Thank you! Feel free to pause the video at any point to take some time to read. If I had taken more time with the slides, the video would have been even longer."