I see. 
Extra work or some ‘extra miles’ are never a problem for me, but there are several issues with these lists.
1. Forgotten
Although initially interested in these lists, such as this Zero-latency plugins list, people seem to forget about them and do not post in them any more.
2. Possibly inaccurate
The list can be misleading: plugin updates can (say) either increase CPU cycles and add latency or the other way round - can be optimized and/or reduce additional latency.