Update ckpts/slat_flow_normal_dit_L_64l8p2_fp16.json

ckpts/slat_flow_normal_dit_L_64l8p2_fp16.json

@@ -14,6 +14,6 @@
         "io_block_channels": [128],
         "pe_mode": "ape",
         "qk_rms_norm": true,
-        "use_fp16": false
+        "use_fp16": true
     }
 }