Data retrieving time using JSON APIs
If we used `http://0.0.0.0:8081/api/block/` API to retrieve blocks, it gives different time durations to finish.
I used this API to get data of block ranges. **One range consists of 100,000 blocks**. So 1-1,000,000 blocks(10 iterations) each range took an average time of **500seconds**. But after 1 million blocks other ranges took an average time of **1300seconds**. 

Is there any reason for this? I think retrieving data from after 1000,000 blocks are getting slow.