Since you are targeting developers I would highlight the differentiating features: "database-backed", and "asynchronous", or whatever they are. This is more informative than "production-grade", "fast", or "scalable", which anyone can claim. In fact, the competitors have a better claim to being fast -- they're in memory! -- so I would drop them unless I had benchmarks. Something I would also encourage you to work on.

Finally, call out your competitors, and explain your value add for each one. Maybe in a table. Why not just use a vector database and hand roll the rest, for example?

Good luck!