Improve BindableList performance + reduce allocations
#6708
| Job | Run time |
|---|---|
| 2m 40s | |
| 6m 4s | |
| 2m 10s | |
| 8m 26s | |
| 8m 26s | |
| 7m 19s | |
| 1h 0m 17s | |
| 4m 58s | |
| 5m 30s | |
| 4m 12s | |
| 5m 31s | |
| 1h 55m 33s |