I don’t have the stats for 100k words read, but in Italian my stats for 200k words read were:
Italian
words read 200k
Known words 879
LingQs 7,567
LingQs learnt 908
hours listening 109 (this is slightly inflated)
Based on this, I don’t imagine my stats for Italian were very different from yours. (I was going through the beginner content on LingQ.)
The difference is that this was over a few months for me, instead of 1.5 years.
As others have mentioned, you’d see more progress if you put in more time. Language learning takes a very long time. It’s probably one of the slowest hobbies you can do in terms of actually being able to do something with your skill (unless you are learning a sister language).
30 minutes per day on average as a beginner is a good goal to aim for. One hour day per would be ideal, if you have the time and motivation.
I wrote about my experience of reaching certain levels in Italian here, if you are looking for goals to set. I also put in my estimate number of hours to reach each comprehension level.