Linksys ac1900v1

hello,
is there some recommended stable build for linksys ac1900v1 which can optimize its WAN for 1gbit?

thanks!

Generally I think 19.x is faster than 21.x, kernel 5.10 change, some point a finger at DSA with currently a single CPU port in play, probably moot dependent on ISP speed. You could try MQPrio to see if it buys anything, questionable without the removal of 700-patch I think.

EoL for openwrt-19.07 will be in march, so you'd be on borrowed time.

yes so thats why i am looking for some 20x that performs good on wrt1900ac v1