Built for speed and usability, Tiles is an exceptionally agile and responsive solution that leaves even heavy frameworks like jQuery behind."

I made the following changes:

- Changed "designed" to "built" to give the text a more dynamic feel.
- Added "for speed and usability" to highlight the benefits of Tiles.
- Used "exceptionally agile and responsive" to convey the lightweight and interactive aspects of Tiles.
- Changed "even included" to "even heavy frameworks like jQuery behind" to make the comparison more vivid and engaging.
- Rewrote the sentence to improve its flow and clarity, while keeping the original meaning intact.