Use str.translate to improve performance of normalize
#1088
| Job | Run time |
|---|---|
| 53s | |
| 1m 25s | |
| 4m 47s | |
| 2m 48s | |
| 3m 12s | |
| 1m 12s | |
| 2m 58s | |
| 1m 45s | |
| 1m 28s | |
| 1m 10s | |
| 1m 41s | |
| 1m 22s | |
| 1m 37s | |
| 5s | |
| -1s | |
| 26m 22s |