It's always good to have a bit of text with your question to help us make our advice more tailored! That said, I'll run with this as "how can I solve cases faster". Here are my main tips:
- Learn how to setup your sheets of paper in an organized, methodical way (I have a "casing template" walkthrough I'd be happy to share with you!)
- Be objective-driven. Anything that does not help you solve the objective should be ruthlessly eliminated
- Be concise/to the point. Tell me the so what right away. Say what matters. Use the right words instead of explaining everything in a drawn-out way.
- Write in shorthand
- Learn to write while you think (i.e. jot down key takeaways, structuring of thoughts, etc.)
If you're struggling with your speed I do highly recommend coaching. It's going to be very difficult to get faster on your own without someone proverbially yelling in your ear at the exact points of the case where you're moving slowly.