Rush Hour was pretty awful, but you can't even begin to compare it classics like Project A or other movies of that era.
For every classic from the back end of Hong Kong cinema being unique you bring up there are 100 films that were shittier than anything that would get made by a production company nowadays. Just go through Golden Harvest's back catalogue and see how many flops they had compared to successes, and that was in days before reviews got around so easy and people were more willing to waste money on a bad movie at the cinema.
Of course the fighting was over the top, but it was also more realistic
Depends on the style of movie and who's making it. Less films use a style of martial art that was meant purely for show any more, they seem to just bastardise real styles to make them more showy lol. Jackie's style was invented purely as entertainment, it's practitioners like Jackie are mainly dancers for Peking operas and to me that's more obviously fake than say someone adding extra flair to some historical or modern composite martial art. I can admire it as dancing but can't take it as seriously as I can Wolverine :/
and didn't rely on wires
Agree that gets overused, but it's not in everything.
or effects
Debatable, I'd say it relied on lower tech effects, choice camera angles etc.
or the god awful shakey drunken camera that modern films are always afflicted with.
Agree again that gets overused, but it's not every film by any means.
Honestly while the 80s had some great things to offer most of it was shite and we have better average quality nowadays, especially in movies and TV.