So slow - chunck loading (1.14.0.52)

Chunks seem to take an age to load. There is a very definite and deceive drop in loading speeds in this update (1.14.0.52) - it's more like playing slugglish Java then Bedrock!!

Just attached a clip. These are all chunks that have been opened in the past and my PC is more than capable of runing Crysis, but not MineShaft it seems.