So recently i moved my bitcoins from my account on localbitcoins to bitcoin core on my computer. However it is still downloading the blockchain. I looked up my balance on https://bitref.com/ and it showed the correct amount of bitcoins that I have sent. I am operating off a shitty laptop and am not going to have enough space for the entire chain to download even if I tried. What is the solution to this, I have another computer downstairs (a Mac) and also have a external hard drive however it is very slow. Someone please help