Hello!
I added some rules to make NT usable for me.
Not so many, about 30.
In the middle of it, so after about 15 rules i added, i purged all old notes, and processed 35000 hands to compare new rules and old, to check that it is all right.
It took about 3-4 hours. Ok. I deactivated some old rules and added more new rules, about 40 total.
After that it was taking terribly long time to process. I left it for all night and it processed 5000 hands in 10 hours. It is not acceptable.
I deactivated more rules, now it is 28 total active now, and it doesn't go faster. It processed 200 hands in last 20 minutes.
CPU is not fully loaded (15% of 25% which is one core fully loaded), I use SSD for database, so it is not a problem.