So Lanczos3 optimized performs better on Windows? It's quite possible that Windows GPU driver performs better than Mesa driver on that ancient Sandy Bridge iGPU.
You can also try Generic-Legacy LE image and Generic LE 13 nightly, maybe you'll get better results.
Sorry I may have not explained it correctly. The Lanczos3 Optimized worked on LE, In regards to Windows it was a fresh install with scaling set to auto and it played fine without any changes and i didn't dig into it any further as it was working and my GF was on vacation at home relaxing and had full control of the remote.