Larger querying larger databases should be a problem for the RDBMS not for the UI wrapper. So I’d wager he is processing every record on the db irrespective of whether it’s visible on screen or not. It would explain the TUI panic posted elsewhere too.

I have no control over which portions of the screen get updated when without updating the library I'm using.

One way to optimise this is to pull back the entire SQL results in an [][]interface{} (row, column) but then only pass a sub-slice to your TUI (depending on how many rows are visible).

I assume your term library doesn’t create the actual table? So you’d know the term height and you’re then plotting the cells? If that’s not the case then I don’t think you’ll get much further with this project without switching to another term library (or rolling your own — which is actually easier than it sounds).

Lol I just did this. Now way faster and can handle arbitrary amounts of data (there is some flickering on scroll for large data sets I'm trying to sort out).