How can you improve and beat harder levels in Geometry Dash Unblocked?

I’ve been playing Geometry Dash Unblocked - a fast-paced platform adventure - for a while now, and while the early levels are manageable, I start struggling a lot once the difficulty increases. Since the unblocked version is usually played in a browser, it sometimes feels harder to control, especially on faster or more complex levels.

For experienced players, what are the best ways to improve timing and consistency in Geometry Dash Unblocked? Are there specific settings, practice methods, or strategies that help with memorizing levels and reacting faster? Also, does using keyboard vs. mouse make a noticeable difference in gameplay?

Any advice or tips to help get better and complete harder levels would be greatly appreciated.