However, after steady performances in the team time trial, Friday's first mountain stage and he and Mattias Skjelmose sitting in 8th and 9th respectively, Ayuso is gaining in confidence.
Ayuso hopes for more improvement
"It's two pretty hard days to come and it's still all to play for,"
Ayuso told reporters before the stage. "I'm hoping for a little bit more. As I said at the beginning of the week, I hope I'll keep on improving throughout the race and I hope today I can make a step forward. But to be honest, yesterday I was quite happy.
"Yeah, preparation for the Tour and for this race was not the easiest, so to not have a super good day and still be more or less there, then I think I have to stay with the positives. And, again, I hope today I can keep on improving and if that's the case, then I hope I can go for the win."
Ayuso did suffer with some initial accelerations as the group of favourites raced up the final climb on stage 6, noting that the first minutes of Paul Seixas' attack put him on the back foot.
Sharp accelerations hurt Ayuso as he looks to long climbs
He and Skjelmose finished 22 seconds adrift of Seixas and Isaac Del Toro and the former UAE Team Emirates -XRG star hopes that he can find a stronger level on the longer climbs.
"I mean, yesterday I think what I was missing was a bit the acceleration they did at the bottom, because then and then more or less we maintained the same speed, the same difference all throughout the climb, but I just missed the first, yeah, the first three, four minutes put me under pressure.
"And I hope today and tomorrow, you know, with longer climbs will be a bit different. And I just hope I just keep on improving overall and, yeah, I can be closer and closer to my best level."