advice on remote viewing

[ip-a 0]

Hi Everybody

 

I am IP-A ,I am relatively new to the cctv scene so please forgive me for an dumb questions.

So this is the scenario :

 

I have 5 sites each with 4-5 2mp cameras installed on NVRS. The brand I am using is Dhua.

I would like to remote view these sites from a 6th location.

I would like advice on what internet speeds do I require at the 5sites and the 6th location where I will be viewing from ?

are there any configuration changes I can make to assist with lag ?

 

I would appreciate any and all suggestions