Hey, 
Sui utilizes causal ordering instead of total ordering, which allows for massively parallel transaction execution. This is a game-changer because many transactions don’t interact with shared objects, meaning they can be processed independently and much faster. Sui’s object-centric data model, paired with the Move programming language, further optimizes this process. Learn more here: Sui Compared to Other Blockchains. Comparison | Sui Documentation
Sui can handle up to 400,000 TPS—check out the Mysticeti demo Sui | Mysticeti to see it in action!
Also here is a SUI roadmap. Please note that you can also check Discord announcements for any new update!