Hungry Facebook page eats up the RAM til my PC nearly stop responding

Just something to report in, while working on my PC I opened Facebook to check on few stuffs. While waiting it to load I switch to other programs to work on my stuff then the whole PC lag till bloody hell whole Window to nearly stop responding. 

I opened up task manager to check which program eating my resources, turns out Edge is eating my RAM until 4GB+ and causing my RAM usage to hit 90+. I only have 8GB for my RAM. While opening the browser task manager and found out that the Facebook page is eating up my RAM. 

Once I close the Facebook page, everything just back to normal.