New wallet is a little slow, but in another way...
I download all the blockchains from 0, but it is not able to reach the actual final point.
For example now it ia at block 514595, while it seen 523521 as last blocks. Processor is almost 50% usage, as it is generating POS blocks (this is even if not blockchians is completly load, but maybe POS is worinkg in this manner).
I have over 6500 transaction in my wallet (the old's one are before ressurections).
All goes fine in downalod until it starts pos, then it is not able to full syncronize.
The notification area else shows: Warning: checkpoint is too old. wait for blockchains to download, or notify developers
The wallet should not stake if you aren't fully synced. This is on my to-do list to check for bugs.
For now what you can do to prevent staking while synchronizing is to use the
reservebalance [<reserve> [amount]] where amount should be higher than your wallet size. once your fully synced up. setback reservebalance to 0.
You can try to shutdown and restart the client, it sometimes help with speed of download.
The notification is normal. you see that message because you are not fully synced up.