Raiblocks of all things. Lol.
almost all the altcoins have made such claims about their coin fixing the issues that bitcoin is facing and only a handful of them have actually done something about it in reality not just advertising method...
I think I have said this before but if anything has any chance of competing with bitcoin it is these coins that are using DAG technology. of course Raiblocks is a combination of dPoS DAG+Blockchain!
they claim to have tested 7000 TPS on testnet how much it really can process? we don't know yet.
but also the issue that I find with the claim is that the test was done on a strong server capable of processing that many "connections" which is against decentralization...
or for example Byteball is a project that I like myself but so far you can not be a witness and that means the owner is setting them = centralized. if you are curious it only processes 20-30 TPS
same with the other one (IOTA) maybe a little more ~50 TPS.
not much improvement if you ask me.