The club is well known for recruiting players based on experience and records. This is a team who still field players who are aged 30 plus so its no surprise to me if they want to sign Di maria at age 34. They believe experience gets the job done so I don't think Juventus wanting to sign Di maria at this current stage of his carrer are worried about getting top performance from him.
Juventus have no plans for the long term. Their goal is to perform well next season. Because their performance last season was completely unstable. And so they want to take Di Maria to the team. Di Maria is a very talented player. Although he is older, but his fitness is good. It looks like he will be able to serve the team well for the next few seasons.
Not unlike her nickname the old lady, Juventus often bring in players who are a little older because they have a short-term project in recruiting players, So far, we can see that almost half of the Juventus squad are experienced players (old).
Arrival Maria will make Juventus even stronger, especially so far we know that Di Maria played in three positions equally well, Di Maria age, which has now reached 34 years, of course, will not be an obstacle for her to develop her game performance because the Italian League is not a league that relies on technicality and speed as well as the English league or La Liga.