Roma performance is not bad, they have improved. I was surprised that Juventus could not win roma . Roma has improving Much better than in the last season.
In this case it is not so surprising because Juventus' performance has decreased in the last two seasons, even they were only able to finish in 4th place in the last two seasons. While Roma, at least last season has started to look when they returned to the Europa League after failing the previous season.
The season has just start, there will be many surprises from Juventus or Roma. We'll see how these two teams face the tight competition in Serie A and maintain their respective positions.
After Juventus won the Serie A trophy in the 2019/2020 season, the next two seasons Juventus could only be in fourth place. So it's true what you say
in the last two seasons Juventus has experienced a decline in performance. Meanwhile, in my opinion, Roma is getting better in terms of performance
since Mourinho became the main coach of Roma, even in his first season Mourinho managed to give a trophy to Roma. So it's not surprising that
Juventus struggle to beat Roma, in fact both Juventus and Roma are both active in the transfer market this summer to strengthen their squad.
And it was proven that both teams succeeded in bringing in new players, which of course made their squad stronger.
Unfortunately several Juventus players suffered injuries earlier this season, including Pogba and Di Maria who were their new signings.
So it is understandable if Juventus performance was not so good at the beginning of this season. Meanwhile, Roma have had a very good start
to the season by getting 7 points in 3 matches. Which now Roma has the same points as the 5 teams above it, but Roma did lose on aggregate goals.
Like you said Serie A has just started and it's only been 3 rounds, so anything is possible. We will see if Juventus can improve their performance and
Roma can play consistently until the end of the season.