Ryukama, Sera and other users wanted me to do this.
It's not only about that since Super Sonic
easily travelled at impressive speeds in this video. And the Super States are comparable or superior to anything in the verse including the beam speed and all the MFTL+ Eggman devices, portals and
etc that he made. The same reason why they are 4-A.
At the time Eggman stored the power of the emeralds in order to make said machine since there were at the time no power source comparable or higher than that, which means that the beam power and speed is derived from that, which can be used for the Super State normal speed. After the Biolizard merged with the Space Colony Ark, he fought with Super Sonic and Shadow, in Heroes Eggman question if the power of the emeralds was enough to beat Metal Overlord.
Solaris and
Time Eater are at minimun MFTL+ and obliviously faster than that since they have
Infinite Speed by devouring, and destroying time and are far powerful than said beam speed, those that fought with them scales to them MFTL+ for low-end to Infinite. Solaris wings of light acts at this speed, same for Time Eater travelling through portals and the Eggwizard with the Powers of the Stars, which can merge universes at that speed.
If the MFTL+ and Infinite feat speeds are rejected, they will be only Unknown [Even for Solaris and his feats] since even Forces has no speed feats of this caliber.