In my opinion you should add one table at the time, most importantly you should auto-pilot some of the super standard moves.
For example you must know what range of
hands to open raise from each position given your stack, your position and the line up of players behind.
Another important factor is to be aware of your range advantage , for example if you open raise from early position and a high card flops then you have range advantage so you must cbet almost your entire range there.
Label your opponents in order to know how to counteract against their moves based on its type.
By auto piloting some of those moves adding tables would be more and more easy for you. By understanding what you must do in every given situation it won't be a time consumption task.