Correra, Martinez and Lukaku are all performing well. But Inter Milan's first two match opponents were Lecce and Spezia. Both these groups are very weak. So Inter Milan won very easily. But since Lazio is not a weak team, we don't know if Inter Milan will be able to continue their consistency. If Inter Milan can dominate and win this match then I would say Inter Milan is the title contender for this season.
Lazio's defense is not weak. However, Lazio's attack is quite weak this season. They managed to score only 2 goals in 2 matches. In today's match, Lash will probably play completely defensively. and will try their best to draw the match. But I will be happy if the match is competitive.
I think it's clear that Inter will be one of the contenders for the title. Lazio are tough opponents but their attack at the beginning of the season is really bad, it's doesn't look like Lazio, they've always been a high scoring team, Immobile needs to activate. Inter have been attacking from the very beginning of the match, they have players ho can to score, but if Lazio could draw this match it would be good for the intrigue in Serie A to last as long as possible.