This was so bad, I'm not even sure where to start. As a general advice when you see 4cores/8GB doing 100rps~~ there is some serious problem somewhere, every dev

This was so bad, I'm not even sure where to start. As a general advice when you see 4cores/8GB doing 100rps~~ there is some serious problem somewhere, every dev should know that this kind of instance doing that kind of benchmark ( simple REST calls ) should be in the ballpark of 4-5 digits not 3.