I originally had the encryption turned on for my macbook I purchased back in 2015. It ran fast enough that I did not mind it.

The thing that ultimately convinced me not to use it was a seasoned apple store employee. He said if something goes wrong and you have it turned on, we cannot recover your data for you.

I am more risk averse, so I went with not encrypting the entire drive.

If I did need some encryption on OSX, I would probably go with creating a directory and using the Disk Utility that is built into OSX to just encrypt that directory.