Why is my Facebook so slow?

[Allison]

I'm unsure whether it's my internet or just my laptop.
It takes forever to load things on my Facebook and I can barely type stuff on there. Especially in the chat, if I type too fast, it doesn't come up or it doesn't respond. and it takes ages just to write a message. it's sooo frustrating. But any other site like Tumblr, Google, Habbo etc is normal.
I own an Acer Aspire 5560G (8GB DDR3 memory) and i've got 7.47GB usable.
According to speedtest.net, my Ping is 40ms, my download speed is 0.69Mbps and my upload speed is 0.89Mbps.
I'm with Adam Internet. is it just Facebook, my computer or my internet?
Also, how could I fix it?