Actually, it's the opposite. He flourishes and performs well when playing on seam, bouncy and fast wickets, hence he only features in SENA (SA, ENG,NZ,AUS) countries.
He debuted in India tho but only bowled less than 2 overs and got injured. After that, he never got a chance to play in India and considering his domestic record on Indian tracks, it seems a right decision.
But in general, it should be the opposite right? He does not have that much pace. So he should get torn apart by the batting lineup of bigger opponent. But it genuinely seems to work differently with him.
The thing is, I still do not trust him, even though his statistics does look better. I would only be able to trust him when he will show good performance against bigger opponents, like Australia, England, New Zealand consistently.
Umm well, take the example of Chris Woakes. He's considered a handy cricketer in English conditions, one could say fine asset for the team as he bats at number 8 and is incredibly good with the bat at this position and ofc fine bowler when bowling in swing conditions (England)
But when he steps out of England he turns into shit and I'm being generous when using "Shit" for him. He's just too disappointing when playing away and Shardul is exactly the opposite, hope you get the point.
BTW Shardul already performed exceptionally well in Australia, England and South Africa.