That is very true, and this is what you should emphasise. Wish you the best of luck!
The actual speed of Kafka has rarely been a concern (but huge numbers of partitions are, which makes rebalancing a pain) in my experience, in fact it was mostly overkill. But operational complexity was definitely an issue!
Without scrolling, all the text thats displayed is this:
"Redpanda
A Kafka® API compatible streaming platform for mission-critical workloads.
Try Redpanda today"
It tells me what it is, which is good. It does not tell me why it is better, for that I have to scroll. Kafka is already suited for mission-critical workloads, so that is not a unique value proposition. Maybe:
"Redpanda - 100% Kafka API compatible, but without the headaches. Forget Zookeeper, forget rebalancing issues. Instead, enjoy reliable message delivery, 10x faster speed and ultra-low latencies due to our thread-per-core architecture."
Something like that, plus a visible "call to action" button, maybe "try it out" or "download".
Could also think about a pretty graph comparing latencies or smth. People love pretty graphs.
I think people LOVE the kafka _api_ but they have a hard time operating clusters at scale. So we decided to keep the same API but solve the problem of operational complexity.