Does that seem about right for an 090? It doesn't look that torquey like I hear the old saws were. I want to say my 661 would blow that thing away. But hey, it's cutting wood, and no major component replacements. I'd call that a win for a Chinese saw.
edit:
I'm gonna have to fire up my 026 to refresh my memory on how it's behaving poorly. His slipping clutch in the first vid reminds me of the 026. I've been fixated on the motor, but it might not be a motor problem... If I remember right anyway. Something easy to check anyhow.