Is the entire blockchain stored in RAM? Bytecoind takes up 80% of my 4 GB of RAM and 2 GB of swap space. Bitmonerod takes up a small fraction of that..
Yes it is. These coins will need to implement a blockchain database eventually. For now more swap space may work, since most of the block chain is never touched.
It makes Unity lag, takes 15 minutes to sync 1000 blocks, and takes many hours to save the blockchain. Not an ideal situation.
Oh right, I forgot about saving. You will need more RAM or waiting for a block database to be implemented to get any improvement.