Many plants have an inherent growth rate that cannot be significantly altered without causing long-term damage. However, there are specific steps you can take to help satin pothos grow faster in the short term. The first step is to ensure that the plant is getting enough light. Pothos thrive in bright, indirect sunlight, so they will likely grow slowly if your plant is not receiving enough light.
Another critical factor is water. Satin pothos prefers to be kept on the drier side, so water only when the top inch of soil is dry. Finally, fertilize regularly with a balanced liquid fertilizer to provide the nutrients needed for growth.