Landing page isn't bad, when you scroll the important points are there, but you have scroll. I'm not a "landing page optimisation guru", so take this with a grain of salt, but I would change it as follows.

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.