CPU 上的合成速度异常

code: 0%| | 0/2048(max) [00:00, ?it/s] code: 0%| | 1/2048(max) [00:02, 2.59s/it] code: 0%| | 2/2048(max) [00:04, 2.08s/it] code: 0%| | 3/2048(max) [00:06, 2.03s/it] code: 0%| | 4/2048(max) [00:07, 1.56s/it] code: 0%| | 5/2048(max) [00:08, 1.52s/it] code: 0%| | 6/2048(max) [00:10, 1.57s/it] code: 0%| | 7/2048(max) [00:12, 1.69s/it] code: 0%| | 8/2048(max) [00:13, 1.54s/it] code: 0%| | 9/2048(max) [00:15, 1.67s/it] code: 0%| | 10/2048(max) [00:17, 1.79s/it] code: 1%| | 11/2048(max) [00:19, 1.86s/it] code: 1%| | 12/2048(max) [00:21, 1.90s/it] code: 1%| | 13/2048(max) [00:23, 1.95s/it] code: 1%| | 14/2048(max) [00:25, 1.98s/it] code: 1%| | 15/2048(max) [00:27, 1.98s/it] code: 1%| | 16/2048(max) [00:29, 1.95s/it] code: 1%| | 17/2048(max) [00:31, 1.95s/it] code: 1%| | 18/2048(max) [00:33, 1.94s/it] code: 1%| | 19/2048(max) [00:35, 1.95s/it] code: 1%| | 20/2048(max) [00:37, 1.94s/it] code: 1%| | 21/2048(max) [00:39, 1.96s/it] code: 1%| | 22/2048(max) [00:40, 1.76s/it] code: 1%| | 23/2048(max) [00:42, 1.71s/it] code: 1%| | 24/2048(max) [00:42, 1.44s/it] code: 1%| | 25/2048(max) [00:44, 1.55s/it] code: 1%|▏ | 26/2048(max) [00:47, 1.80s/it] code: 1%|▏ | 27/2048(max) [00:49, 1.90s/it] code: 1%|▏ | 28/2048(max) [00:50, 1.67s/it] code: 1%|▏ | 29/2048(max) [00:52, 1.86s/it] code: 1%|▏ | 30/2048(max) [00:54, 1.96s/it] code: 2%|▏ | 31/2048(max) [00:57, 2.05s/it] code: 2%|▏ | 32/2048(max) [00:59, 2.14s/it] code: 2%|▏ | 33/2048(max) [01:01, 2.20s/it] code: 2%|▏