to develop about 100 000 images RAW (time lapse). How to automate?

Can one Preset correct all the RAW  Files.  Was the Time Laps image sequences capture lighting conditions and exposures all identical?

It seems like it would be a simple process to mostly automate if  every thing was constant except the motion.

It  is more or less a two phase process using two Adobe scripts and an action. 

Phase one use Photoshop menu File>Scripts>Image Processor...  To convert your 1000 RAW files to Jpep image files converted using your acr settings you set for the first RAW file. The Image Processor can also resize the images and play an action for each  if you wish. Phase one ends with all your RAW file converted and save as jpeg file in an folder.

Phase two use Photoshop menu File>Scripts>Load Files into Stack...  Select Folder Then browse to the jpeg folder to select the jpeg image saved by the image processor.  There need to be less than 8,000 images Photoshop layers limit.   Depending on capture conditions and image content you may want images to be aligned  by the script.

Once the Image are in a stack you use an action you recorded to create a frame animation timeline. The used the Time Lime fly-out menu to make frames from layers from layers.  Then menu File>Export>Render Video. Set a low frame rate.

If you know Photoshop scripting the whole process may be able to be scripted.  The would be a lot of  work  you should only do that if  you  are going to be creating timelapse movies all the time.

Have a look at: New Version: Russell Brown's Image Processor Pro #Photoshopscaresme

How much of this work do you do?

Have you investigated using a more dedicated tool such as LRTimelapse?

https://lrtimelapse.com/