1, Photoshop needs more memory.
2. Right-click my computer properties, select virtual memory settings in advanced system settings and performance options, set the system disk to no paging, select a disk with large disk space, set it to "custom size", and set the number to 2048-4096.
3. Open PS, select Edit, Preference and Performance, and check the non-system disk as temporary disk. You can check all other disks.
4. Select "File Handling" and "Camera Raw Data Preferences" on the left. First, click "clear cache" to clear the cache, and set the cache size to be larger, such as 5 g. Finally, we choose a non-system disk, such as D disk, and finally click OK.