Not really into the hi hats for a lo-fi song, I feel like if it had a 1/4 bar hat pattern, it would give it a bit of a more vintage, old fashioned feel. Just an opinion though.
I'll do you one better, I'll tell you what I really liked and what I didn't like.
I really like the intro when the piano sample is first introduced. That whole part has such a good classic lofi vibe. What I didn't like, specifically, was the transition from the intro to the main beat. It just feels a little awkward and I think it would be easily solved by an eight or sixteenth rest. You could probably even sneak in a little fill too :)