Could you provide the network topology diagram, so that we can understand how devices are connected correctly and how you want connect them later.
If I am understanding it correctly, there will be no different because you are just adding one more device to the network path between internet to R510.
Please provide more information like how devices are connected to each other and to the internet, AP is managed by a controller or standalone or Unleashed.
Also confirm what speeds you are getting and what is the expected speed.
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