This is somehow implausible if you mean a cold wallet. Its synchronization from scratch takes a maximum of 5 days, with a low Internet speed.
You can also trim old blocks so that it does not take up much space, and a maximum of 13 gigabytes at the moment.
To do this, it is enough to write a command in the wallet shortcut after installing the wallet (necessarily before the first launch of the wallet), for example:
D:\BTC\BTCWallet\bitcoin-qt.exe -datadir=D:\BTC\BTCWallet\ -prune=600 -listen=0
Well, and accordingly, you need to make a backup of the wallet at least once a week, when there are a lot of transactions in it, so that you don’t have to download all the blocks from scratch again, and in general, when there is a balance on it.
Even if you use the prune command, the entire blockchain is still downloaded and validated first. It's also worth noting that blockchain download times are affected not only by slow internet speed but also by hardware components. In particular, a weak CPU and low RAM can significantly slow down this process, and if you download to an HDD, this process can take weeks rather than days.
In the case of freebitcoin, it can be assumed that they simply have a weak server and therefore expect the synchronization process to take some time.