I made 3 orbs in Inkscape and tweaked two of their colors to teal, and saved the file as an Optimized svg. Attached is an image of the svg file as seen in Illustrator.

The first orb was tweaked via Extenisons-Color. The middle one, has a Color Filter applied to it. However, as you can see, the middle orb that has the filter applied, looks pixelated in Illustrator while the first orb with the extension is perfect. All three look smooth in Inkscape.
What am i doing wrong? The filters are more convenient for tweaking but wont help me if they pixelate in Illustrator as that is the application used by colleagues.I want the 'filter version' to look smooth as well. Also, is there a way to expand the filters that are applied to the objects in Inkscape? So that the filter settings are not required anymore?
I'd also like to move the side toolbar that contains actions like new,save etc, to the top. How can I do that?