# How L2 work?

By [Kahn29](https://paragraph.com/@triad1760) · 2022-08-08

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Due to the high gas fee, slow speed of tx, the L2 solution as optimism, zk-roll up gonna be very good to solve those issues

Very happy to explore more and share for you guys

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*Originally published on [Kahn29](https://paragraph.com/@triad1760/how-l2-work)*