I have my small contribution for that page, specifically the pie chart for the mining pools. Currently, you use a pie chart for it but its size is too large and it has not been displayed well. You could adjust the size smaller a bit.
However, I suggest you to use bar chart (horizontally) due to 2 advantages at least:
- Human eyes are more easily to assess and realize differences in the vertical or horizontal line. More easily than when we have to compare (by eyes) differences in arcs or angles.
- The second advantage is to help you better show labels of mining pools.
- To make the proposal is not from my subjective opinion, I searched and here you go with the article that presents some disadvantages of pie chart: How to Choose Between a Bar Chart and Pie Chart
- Horizontal bar chart is better than vertical bar chart if you have too many sub-groups need to be displayed on the chart with their label names
Example with a chart is taken from there Top-10 mining pools on bitcoin network over years (2009 - May 2020)