cryptochartsmonitor.com
lets you chart for free multiple binance pairs. up to 150 on a page.. charts are from tradingview, customizabie. and you can add your favourite indicators
you need some decent ram on your pc to open many charts.. initial loading takes a while but once open charts work fine..
i think your website is good but you put too many charts on a page.
it would be good if you make an option about how many charts we need on a page and which coins should be shown.