I use a 65w PD charger. At a low battery level, it can maxium get to 52w, but after 3 minutes it became 36w and then when temperature reach 43°C, speed went down to 15w.
As an Andriod Phone, manufacturers always tend to overstate their charging power specifications. In particular, there is usually a peak “boost power” which lasts for about 3 minutes, and only this peak power can get close to the manufacturer’s stated figure. However, the sustained power after this initial boost usually isn’t particularly high either.
For example, I also have an OPPO X8U; the manufacturer claims it supports 100W charging, but in reality, it can only reach a maximum of 70W, and after three minutes, it will settle and maintain a level of 45W.