"He did well last year but the way he has started this season is the best I've seen him," Lambert told BBC Radio Solent. "It's awesome to watch.
"I've been saying for years I look up to Adam, even though I'm older."
Lambert continued: "His desire to win is inspiring, and that's why we all follow him. He is a great player and captain.
"As hard as pre-season was, I think it's really helped Adam. It's given him an extra yard of pace and a little bit more strength.
"But, most of all, it's given him the confidence to go and compete against the best players."
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