1.14 Server using 100% of CPU and RAM

I've seen other reports of this... but it is NOT resolved. So don't mark this as duplicate please, because it is very much an issue and HUGE one at that, affecting every single server I have come across playing in this version. There is so much rubber banding and server lag, because even when no one is playing, 100% of the CPU core is being used! Please fix this! It's unplayable!