keyboard hangs

My keyboard doesnt work properly. It hangs when i use it frequently and had to clear all data to make it fluent again for that I have to save text shortcuts again n again that is not well. I saw everywhere to turn off learn words option but i could not find any setting for that. If i turn of predictive text it will not show me text shortcuts that i use most. I i continue using it with predictive text keyboard hangs. Lack of options in latest phones or optimization problem. Plz help me sort it out. Thank you!