Please ... 'guru'???!!! More like 'guessed right 3 times in a row'!
Anyhooo ... 'rattled' my tree ... so a response ... kinda.
Chuckle ... see the config file is well commented ... even 'who to blame'? (not really).
The only reason for suggesting not sharing ... OP we do now know, copies and paste without checking docs for DB servers.
Some settings I had for MySQL 5.6 no longer needed in 5.7 ... and beyond.
Do have a suggestion for ya Rick (OP also if OP doesn't have 'command line avoidance syndrome') ... install MySQL Tuner on that server and let's see what it recommends. ;)
'SoS', Ken