well, every one of them that are based on the same technology and require a blockchain to be stored in a decentralized manner and blocks to be mined are facing the same issues.

the blockchain technology is not really a complicated thing. it is data that is being stored somewhere. there are always going to be limitations for that. you can decrease the block times, increase the block size and with it increase your scaling. but you will be sacrificing a lot by gaining so little.

of course there are other technologies too. like what IOTA is using, but i am not familiar with it so i won't talk about it here