Actually this doesn't help to increase the TPS. This just creates a more secure network.
The most people are not struggling with the performance of the tangle itself. The tangle itself is fast enough. Could be faster, but is not that bad as many people experience. The issue is more that the most people only connect to a few full-nodes. e.g. the iotasupport or bitfinex one. And these nodes have a huge issue with handling all these light-nodes. We don't know how many they get, but in case of bitfinex, it must be hundreds of thousands. I guess they also using this full-nodes to send the withdraws. So, the login and attachment of a address takes a lot of time on these nodes. Also getting new transactions can be a huge act for them. They have to be in sync the whole time.
Another issue, which I currently experience, is the upgrade process and neighbor-sync. The upgrade is a huge pain. Not exactly for me. I use a cron-job for it. It restarts the node after an upgrade and everything is fine. But my neighbors... Some of them are still not on 22.214.171.124... so I removed them. One is on the test network and breaks my transactions... So I'm 100 milestones behind the tangle, because of this shit. I hope Nelson will be finished soon! :)