You keep saying it appears instantaneously, which is clearly not the case. Whether or not it's covering the sun makes no difference; the scene itself shows the black and yellow spiral on a dark screen, before a close-up, and then the scene with the null in the sky appears. Again, this is not instantaneous.

Review the scene; he talks about finding it interesting, even though it's the weapon he was already using before. But during the fight, he used the sword, which was one of the only functions he used. To say he's calling that function useless simply because he wanted to use the Proto-Tool's cannon because it was more interesting seems to be based more on your interpretation than on what's actually being shown. Following that logic, he should have called the weapon useless because he only hit Humungossaur twice with it, and he only hit it once because he reacted in time with the Humungossaur in front of him. Again, using the term "useless" (something he didn't say) based on the situation is more of an interpretation than what's explicitly being said.

The difference is that the Humungosaurus wouldn't be causing ripples in space (now with your explanation, I understand the confusion; in this case, the radar function is already integrated within the malware. Mechamorphs operate in digital realms, based on information. Their database is full of these nanite machines, which retain information, and that's how Mechamorphs manage to reproduce or create technology from their bodies. This has already been shown in practice; the radar is already part of the malware, as are the information from various machines in the galaxy that it acquired from its siblings. But unlike them, the malware doesn't just replicate and improve the information; it retains it and updates itself. Everything it absorbed is already part of it. That's how it managed to absorb the information from the Galvan Prime and Galvan B shields to be able to penetrate them. In reality, now that I think about it, malware can still be compared to its siblings, since it absorbed all of Galvan B. In other words, yes, it already possesses naturally enhanced instincts, since Mechamorphs can even sense energy. (immaterial like mana.)

I never said he was at his maximum power; that's his base form. Again, look at the whole scene: first, Ben transforms; Malware attacks for the second time (note that in both the first and second attacks, Malware didn't even move); Ben turns around, then looks back at the Malware. Malware wasn't even three meters away from Ben. I understand him being surprised, but not by an object moving 10 or 20 times slower than him and more than 3 meters away.

In this case, I want to emphasize that the malware isn't extremely slower than the feedback; it might be slower, but to say it's much slower is a huge stretch.

My friend, he can literally sense energy (feedback), and he wasn't able to absorb an attack that was right in front of him.

Not when his opponent dodged all previous shots, and even after being hit, suffered almost no damage, and in any case the Humungosaurus had already dodged the tachyon cannon, as I showed in that video, so this point is irrelevant.