Since fairly recently the import of files from the SD card to the LightRoom 6.1 became unbearably slow. Actually, moving the files are fast, it is building the 1:1 preview that is like watching the grass grow. Checking the Task Manager it shows that the LR takes sometimes 95 percent of the CPU power. RAM is not an issue, max is about 60 percent.
I have a decent Windows 10 desktop - the i7 CPU, 8 GB RAM. The LR is installed on an SSD drive, but the pictures are imported onto a standard 4TB SATA drive.
The SD card is rated at 95 MB/sec, but I doubt it is a card issue, because, as I said above, the actual copying is fast.
And finally, I work with the raw files created by the 5D4.
Any guesses?





