That's certainly true, mate. Most "De-Fi" projects on the TRON blockchain are simply an exact copy of those available on Ethereum. While the vast majority are a scam, there are some that are quite legitimate. What TRON needs is prominent developers working on it to provide new "De-Fi" platforms for the mainstream world to use. The blockchain may be scalable but it lacks mainstream adoption. Ethereum is still the winner in the "De-Fi" space because of its widespread use worldwide. As long as this is the case, TRON will remain as an alternative than a replacement of the Ethereum blockchain.
I'd expect new "De-Fi" projects to come up eventually on the TRON blockchain. At least, we have a much more scalable version of Uniswap on TRON dubbed "Justswap". With TRON's little to no fees and near-instant transactions, exchanging one token from another becomes a seamless task. I personally find Trontrade and Justswap to be extremely convenient for exchanging tokens without middleman. TRON's scalable design, allows these platforms to be far superior than their ETH counterparts. They can also become comparable as centralized exchanges in terms of performance. If mainstream adoption grows for "De-Fi" on TRON, expect prices to explode on the market. Otherwise, everything will remain the same. Just my opinion