No, I don't think so. It is undeniable that ADA's movement is quite slow and not as fast as its competitors. However, when compared to Polygon, in my opinion, ADA is still better.
Let's just check on CMC, ADA has managed to rise to rank 9, and its market cap is quite good compared to POL which is currently ranked 41, where it has dropped very drastically. And the price is also more significant for ADA than POL.