I answer to myself. YES, if possible. I have already installed ANX Camera on my Redmi Note 9. No more lags in the shutter, no more lags when moving the phone while using the camera. It is working very well. Well, I haven't been testing the application for a while, but at the moment it works well and now I can use the 48 megapixels and in theory the four sensors. I'll keep testing, but in the short time I've been using the app, I do notice a difference in fluidity against the GCam. I am not saying that the GCam is not good, of course it works well, but at the moment I think ANX Camera works better.