He has scored six goals in 10 matches so far. I'm talking about this season for Roma. Things do look good for him so far. And I think he will be able to get a lot more goals as the season progresses. We all know that he is a really good player while playing for any club in the Serie A. Maybe I think we cannot expect a very explosive performance from him yet. But if he actually performs really well, we can say that Roma is going to finish in a very respectable position in this season.
If Lukaku doesn't lose steam and shape, he might be among the best scorers in Europe until the European Championship starts in 2024. All the goals he scored must give him extra confidence and there is no reason to doubt he is able to score in any game. He could become the most valuable asset Roma has.
I will be honest, I don't like Lukaku as much as I like the top strikers in Europe because I thought he is not physically flexible enough, but I could be wrong and maybe should change my opinion about him. He is delivering nonstop.
Basically, it is mandatory for a striker to have lots of goals in every season. So yes, although so far Lukaku still looks good at AS Roma having managed to have good goals too, but I'm not completely impressed. Because after all, a good performance like that but in reality it still can't make AS Roma compete well in the top four. Because yes, if Lukaku is really impressive, then AS Roma should not be in 7th place with only 18 points currently in the Serie A standings. Indeed, I also realize that this is not only Lukaku responsibility but yes, of course the responsibility for all the players are also in the AS Roma squad at this moment. Therefore, it would be more impressive if AS Roma managed to compete in the top four but unfortunately, it is still difficult for AS Roma to reach the highest position in Serie A.
But in all fairness as you said, this is really not Lukaku's fault and I think a striker can still be impressive when his team is fighting against relegation. There were cases in the past when a team had an amazing striker, but the team just couldn't live up to that performance.
But I am not saying that Lukaku is the man in the Serie A. He is doing a good job for Roma, could be better though! He is doing remarkable for Belgium and everything combined I think it's a decent performance. But Roma is too weak in general to compete for the top four.