No, having two routers will not slow down your internet speed. It can improve the performance of your network by providing additional access points and allowing multiple devices to connect to the same network at once. Additionally, having separate routers in different locations can help reduce wireless interference from other devices that may be nearby.
So while having two routers won’t necessarily increase the speed of your connection, it can provide more stability and increased coverage throughout a home or office building.
Having two routers can increase your internet speed, depending on the type of router and setup you have. When two routers are connected, they can share a single connection. If one router has trouble connecting or downloading data, the other can pick up the slack.
Additionally, having multiple connections allows more devices to be connected simultaneously without suffering from slow speeds. That said, if both routers are outdated and not correctly configured, you may experience slower speeds than with a single router.