Greedy landlord.

If the tenant does not give the landlord any problems and always pay on time, I would choose to continue this relationship instead of being greedy.

I recommend you just leave. I hope this kind of landlord gets a bad tenant and knows what it feels like. There are things you can’t just view/measure from the money pov alone

I support your decision.

Dump everything into stocks/epf. Definitely can outperform property investment with literally zero effort.

Stock market can do that as well with zero effort.
By zero effort, you can just do it on your smartphone. Open brokerage app, buy stock then close app. Done!

I am not saying you can’t make money with property investment. Property investment needs more effort.

Of course this is my own personal opinion.