I think not all traders open charts up to hundreds of pages. Because it's usually hard to find focus when too many charts are opened. Only need to open a few to be analyzed. Does not also require a computer with high specifications.
of course if I open the chart too much it won't focus on analyzing ,at that point only a few pairs are no more than 2 and that I also uses two screens to read well when faced with the desires of daily trading it will be more beneficial only see the trend why use so many displays that in the end will only make me a stress