perf!: replace default engine JSON reader's FileStream with concurrent futures
#1656
| Job | Run time |
|---|---|
| 2m 58s | |
| 3s | |
| 3m 1s |
FileStream with concurrent futures
#1656
| Job | Run time |
|---|---|
| 2m 58s | |
| 3s | |
| 3m 1s |