Speeding up the processing

Hello,

I’ve created a training data (vector polygons for crop type) which contains 11,000+ features.
I’m trying to produce a crop type map covering four tiles, my season coverage is about two years and I see to it that the shapefile uploaded is topologically valid (using check_shp.py).

By now, it is still running for two days now which usually just runs for 12 hours (using a 6,000+ features). Is there a way to speed up the processing?

Here are the specs of my machine:
RAM: 48GB
CPU: Intel® Core™ i7-7700K CPU @ 4.20GHz × 8.
HDD: 8TB