acf-getallobjects
getfield has cost in front end! it means when you perform this function it calls multiple time queries as you store data in your backend. in simple words if you had 1000 text box in your acf option back-end and you call acf getfield in front-end it will call mysql query 1000 times and if you want use acf and care about your performance you will need to use this plugin or other approciate approche.