I know you haven't watched DB, so maybe what is common knowledge to me is unknown to you.
Ignorance must be bliss for you considering you're jumping to preconceived notions while I have indeed watched much of Dragonball and know even in that series, you are greatly exaggerating character feats.
As explained by Piccolo at the beginning of DBZ to Son Gohan in regards to even Yamucha's speed, you cannot see any of the fighting going on, you must sense the ki.
Pointless against the androids before Cell's arrival because their ki couldn't be sensed and the Z Fighters were fighting blindly against them.
As a characters gets faster, so does his beams.
Weaker characters can not see faster characters beams:
If we were to go along with that logic, then the eye lasers fired from the androids should have killed Tien because "he's a weaker character" yet he dodged the attack regardless and his power is greatly dwarfed by Goku who can go SSJ at that point. Note that the attack from Cell was a surprise attack considering he immediately fired the blast when he warped back from the Other World. Has nothing to do with speed. And in same said saga while Cell was in a blast struggle with Gohan, Vegita managed to land a sneak attack on Cell that the android didn't even have any the time to react to.
Speed is a tool to move fast in a battle.
The shunkan Ido technique allows Son Goku to move instantly.
I won't go into this since Newdeath already covered it. But long story short, Goku still needs time to sense a ki target before warping which I doubt Goku's brain will have the time to process with Wally speed-blitzing him.
So, as a manga feat it is inconclusive at worst, lightspeed + at best.
If we look to the anime for clarification, then it becomes apparent that gotenks flew around the world many times in a matter of seconds.
Only within your fanboy-crazed mind would you believe it was a light speed feat while the flying speeds of other characters throughout the show say otherwise.
And, Son Goku did indeed put on glasses before the light from the taiyoken blinded him.
It would be just as easy for one with "faster than the eye can see" speeds to snatch the glasses and get back in position before the Taiyoken came off. Even less effortless with supersonic or hypersonic speeds which makes the entire point of this argument from you pointless.
Piccolo blew up the moon with a spamable attack at, or very near the speed of light. I have proven this, I have even proven the author specifically knows the distance from the earth to the moon. Piccolo with the same power level fired the makankosappo which he thought undogeable. It was going at least as fast as his moonbuster.
You haven't proven anything. Piccolo was quite close to the moon when he destroyed it in both the anime and manga considering how large it appeared in both the anime and manga versions of the scene. You can't say you can accurately control an energy blast up to 238,857 miles (distance from Earth to the moon) unless you're close enough to what you want to destroy.
Is it any wonder why folks get pissed off debating with you in a "comic character vs DBZ character" because you won't admit defeat to a better opponent?