I don’t recall any mention of a simple tweak? Did I miss it?
The way I see it is that the screen isn’t big enough to make any use of faster data reading anyhow, probably not even in landscape. 10 reads a second would try to cram 300 signal points into the same screen real estate… not to mention scroll by so fast you wouldn’t even be able to make sense of it.
But as you already have shown, you can export the data to a medium that makes reading higher resolution possible, so why bother on such a small display?
Anyhow, your question was how… but it appears the answer is “not an option”, sorry.