This study examines the impact of interactive reading instructional software (IRIS) on the reading speed of first-grade elementary students. Using a single-group pre-test post-test quasi-experimental design, the research involved 21 days of interactive reading lessons. Observations during the implementation phase helped evaluate the influence of the learning environment, while post-activity interviews provided insights into how the interactive reading setup boosted students' reading speeds. The results showed a significant increase in reading speed for students using the software. Key factors contributing to this improvement included the intelligent course mode, eye exercises, and reading practice features. This study aims to support efforts to improve reading speed, particularly for young learners in elementary school.