im very loathe to say this ,but,it has made a huge difference ,apps are now very smooth when more than say 2 are open ,scrolling is smooth ,the one app i use for diagnostics no longer stutters and shudders .system resources is no longer complaining,i could watch tiktok without the phone stopping on Lte.havent had to go the aeroplane route since yesterday ,so,so far so good .I have been told the way Miui14 uses ram is very aggressive ,dont know im not a software engineer for Redmi ,but hopefully it was the problem.