Can I configure Lightroom to use all my cores in case of actions like imports?

Hi!
I've a CPU with four cores and also enabled hyperthreading.
But if I do an import by Lightroom it uses at best 25 % of my overall CPU performance.
If it would start many low prio threads, it would speed up my import a lot, as I've import very often 2,000 up to 8,000 pictures.
In my case it could speed up the process by factor 4. And that would be great, as also an Intel i7 with 3.4 GHz has a lot of work to do, so the import of 2,000 images takes in my case perhaps 15 or 20 minutes. I did not watch the time.
Is there any chance, to tell Lightroom to use more threads and spread them over all the (virtual) CPUs?
Best Regards

Hi
My system is only occupied by ~20% during regeneration of previews. Also my harddrive has not much work to do (~2 MB/s by Lightroom, ~10 MB/s in total; but only in case of maximum peak; the average is less then 10 MB/s). And only 6 GB in total and less then 3 GB by Lightroom of my 24 GB RAM are used. So my system has much more power, than Lightroom want to use.
So there is really a way to improve the performance...

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