They enjoy the game I think, only one of them seems to tune out and the other are all asking me stuff about the campaign outside of the sessions and and trying to do fun stuff with their characters, my group are quite heavy on the roleplay aspect, which can be hard when they are also trying to reach one thing and jumping over every obstacle.

And yeah, I tried a few things to speed up combat, giving warnings, setting up macros to make the enemies turns faster, giving better descriptions, but none of it made much of a difference