I have not yet installed a local purse, but sometimes the etherium network, as we all know, has problems with which it is useless to fight, so it's probably worth waiting for, but if they do not stop, then it's worth looking for a problem on your computer.
those problems you have heard about have nothing to do with what OP is facing right now. those problems are the congestion of the network and it being unable to handle that many transactions. and in some cases the nodes crash.
what OP is experiencing are two things: the hugeness of the blockchain, the slowness of the download because he has to connect to another node and download and then verify each block and store it.
it has been impossible to sync a full node of ethereum for a while now due to these issues and it will only get harder.