Chongqing inaugurates two metro extensions
https://www.railwaygazette.com/metros/chongqing-inaugurates-two-metro-extensions/63406.article
Raising the maximum speed seems to be trend for metro systems in China. But, unlike Japan, the rapid train which skips intermediate stations can rarely be seen in China.
I guess it's not easy to build stations with siding tracks to let rapid trains overtake slower trains.
