You are saying that Waqar had a worse average than Bhuvi Kumar in England and South Africa.[MENTION=132916]Junaids[/MENTION] anything on this one? Looks like you intentionally missed this post.
South Africa was banned from Tests until 1993. Pakistan played 1 Test there before Waqar played there in 97-98 when he was almost certainly around 33 years old - and he missed that 1994-95 Test.
So his performance there was meaningless.
He played 10 Tests in England. He averaged 25 in 1992 when recovering from stress fractures and 26 in 1996.
His average is distorted by playing the 2001 series as captain when he was at least 35 and averaged 35.
But Waqar was according to pretty much universal opinion the best player in county cricket in England in the 1990’s.
So the mediocre averages to which you refer are distorted by performances long after his peak.