ilius33

> [official example](https://echarts.apache.org/examples/en/editor.html?c=scatter-large) has `large:true` and works fine. Any reason why you want to disable optimization with _large_ ? Yes. The obvious reason. Brush selection doesn't work with `large: true`...

> ok, agree, related to #17079 and #9945 BTW all points seem to be showing (tooltip present), but some are not highlighted. Not highlighted and not present in event. BTW...