Possible mistake in Table metric direction: R-order should be ↓ instead of ↑

Hi authors, thanks for the great work!

I noticed a potential issue in the paper.

The **column header at page 9 table 1** shows:
> R-order ↑

However, based on the definition of R-order (as an error / ordering metric), it seems that **lower values indicate better performance**.

Could you please confirm whether this is a typo or if I misunderstood the metric definition?

Thanks!