We can say they have most of their players fully strong and fitted this season yet their performance this season cannot be compared to last season. I dont know if they remain at the same level of performance and if other clubs have improved that is why they are not getting the most out of their games.
Also, I think defeating Manchester United was not a big deal for Tottenham. You should be saying this if Tottenham had beaten teams like Arsenal or Manchester City or even Chelsea. Who is Manchester United this season for winning them to be a great achievement? Many clubs in the EPL now can win Manchester United. And when i mean by many clubs i mean, underdogs team.
You make good point. Tottenham performance this season is not as good as last season by the way they have strong team. Maybe they have stopped improving while other teams have gotten better. I do not think beating Manchester United is meaningless. Beating any top team in English Premier League is impressive.
However, Manchester United is not playing well right now making them easier to beat. Smaller teams have already beaten them this season showing how competitive league is.
To be considered real contenders Tottenham needs to consistently beat top teams like Arsenal, Manchester City or Chelsea.
Tottenham team can't start this season well. Tottenham's performances have been erratic since the start of the season. Tottenham have lost against Arsenal and Newcastle. The team lost points in these two matches due to the weakness of the attack. Tottenham team also failed to win against Leicester City.
In the early matches of the season we saw poor performances from Tottenham's attacking players. However, in the last two matches, I saw quite a good performance from the players of Tottenham. Tottenham won 3-1 against Brentford and 3-0 against Manchester United. Compared to the first matches, Tottenham's overall performance is very tidy. Hope to see a more stable performance from Tottenham in the future.