Hello. I own a Pulsar RS200. I decided to change my engine oil to Motul 7100 Fully Synthetic last week. I gave it to a nearby repair shop. I gave him a 1.5L bottle and when he asked, he told me there was nothing left to be returned. My engine capacity is actually 1.2L. I ignored it. But even after 200-300km, I was not feeling a difference as told by other owners. So I thought of checking the engine oil level and as I expected it is full (above max level). Is this the reason am I not feeling a difference? What should I do?

P.S: I have actually driven like 200km with overfilled state