To talk about TPS is a very 2017 topic, I know. In the past I had the same question and I got to understand that there is no fixed limit of TPS in the Lightning Network as it depends on the amount of channels.
Each channel increments the total TPS capabilities in the network.
I was wondering if this what I said is 100% right and also which is the technical limit of TPS per channel? Maybe something related with the amount of HTLCs than can be processed by the LN implementation?