Set use_tpu_fourier_optimizations

config.json

@@ -53,6 +53,6 @@
   },
   "transformers_version": "4.9.0.dev0",
   "use_cache": true,
-  "use_tpu_fourier_optimizations": false,
+  "use_tpu_fourier_optimizations": true,
   "vocab_size": 32128
 }