startupgeek:
I had changed it to 40mhz and 20mhz and it was worse speed wise.
I always thought mesh networks give you greatest speed or is it more coverage?
Maximum speeds will be less, that's what I explained in my post. Your SNR and overall performance will increase.
Mesh solutions are built around improving coverage, they will not deliver the best possible speeds. Apart from that I have nothing to really say about them because I don't use them, nor do I recommend any mesh based product as a solution for WiFi. That's my personal view, and clearly others will disagree.