ENG Ideas: Cannon Optimisations

[BlocksOnAChain]

Describe the solution you'd like Optimise cannon performance. There’s a range of things that might fit into this category but the key ones are:

• Introduce a more space efficient format for state snapshots
  • Avoid using excessive system memory when serializing snapshots of client programs that use large amounts of memory (likely by being able to stream the snapshot rather than encoding entirely in memory before writing).
• Optimise memory merkleization

Describe alternatives you've considered There are probably things we can do, but we can discussed it further if people are interested.