how to use, apply cache library.

Hi Good Morning,

i have made, online stocks requisition system and it is used by 90 branches nationwide. so in this case, expect a lot of data loaded from database and i have insert, update, read and view data from the database.. and for now i have table like stocks, request, branches and so. one of the table i mentioned it has 80k line's of data and it is very heavy to load.

Sample:

in 80k data divided by 90 branch.  so every branch it has 889 lines of unique data more or less. and my problem is, i didn't use cache library.. so i need you guys to guide me in how to use cache library in a proper-way.

Thanks..