Awesome site.  I use cryptowat.ch very frequently.
I'm not sure what the issue is maybe you can help me with this.  Sometimes the time and sales, and the depth of market streaming just freezes and nothing happens.  This happens alot with the okcoin.cn market data and I usually toggle to other markets and wait for the data to resume.  Is this something on my end I can improve on?  If anyone has any suggestion please let me know.  I have CPU running at 50 percent for this site alone. 

Greg