Same old problem - Noise Interior Scene

Hi guys, i have problem whith noise, heres is my scene, i’ve seen all tutorials abaout noise and mistake, but i cant improve my scene

After 86 passes

Indirect:

Direct:

Scene

Stats:

Albedo:

All values are as default, i olny changed LSM to 4

any help would be greatly appreciated
Cheers from Argentina

I think you need light portals.

Also, have you tried 1.6 hotfix2 or the last daily builds? There was a significant improvement causing less noise

What is your output resolution and CPU? 86 passes is not that much.
Some further ideas:
-revert back to default render settings
-set max sample intensity to 10 (it will make the render slightly darker, but noise will go away faster)
-place a portal as suggested
https://coronarenderer.freshdesk.com/support/solutions/articles/5000501660

Resolution 800x600
I5 2.5ghz, 8G ram,
I would try that Maru

Yeah, that’s not a very powerful system, so it probably does not represent the expected speed of Corona. I am afraid that heavily optimizing the scene and waiting for more passes to compute could be the only solution.