Both these tournaments were played in Australia and NZ and the results indicate how much batting changed in the intervening period. There was a song and dance about batting technique elsewhere - but fact is batting technique nowadays is of secondary importance - the rpo is the real issue in this case.
The highest score recorded by any side in 1992 was 312 runs in a game between SriLanka and Zimbabwe. Scores above 250 runs were rarities as well.
Now onto 2015. With one or two notable exceptions in 2015 winning sides had to score above 300 runs to be assured of a victory. There were even three scores above 400 recorded.
The question is what changed in the last 23 years. The answer is simple - at the time the games were played as shortened versions of test games - without much difference in approach. Technical correct batting technique was the norm and the principle was to build an innings at run rates of about 3 to 3,5 rpo and only in the last few overs in an innings did teams play differently.
Nowadays the whole approach is different - correct technique is still an asset, but a minor one at that. Today it is all about innovation - about piling up runs throughout the innings trying to get to 6 rpo in the first 10 overs and - maintaining that rate until the next power play and forgetting all about technique and hitting out at every ball in the last ten overs.