Hello Christopher, I saw you code and you noticed you are reading all the data(3GB) locally, maybe it's causing your machine to use swap memory, which leads to the performance issue. You can check that by 1: open htop in one terminal (apt-get install -y htop) 2: run your application 3: check the memory usage on htop, if it use 100% of memory, then the machine will start to swap
Please, correct me if I'm wrong.
