Why place these androids so strong?
The thing is, it isn't just a pure power levels thing; 100% Freeza and likely King Cold as well has stamina issues when at 100% power. If 100% Freeza is 120,000,000, and King Cold is slightly weaker at 100,000,000-110,000,000, then theoretically 70% Mecha Freeza should be able to outlast them. He should be barley weaker than Cold in the first place, and can even be stronger than him (subjective, depending on where you have Mecha Freeza), and not that much weaker than his 100% organic self. Freeza only used 100% power for a few minutes before it started to drop.
By my estimates, 70% Mecha Freeza would be around 100,000,000 and so would Cold. IMO 70% Mecha Freeza would beat Cold without that much trouble; they're basically equal in power, but Mecha Freeza has the advantage in both stamina and techniques. 100% Freeza vs Mecha Freeza would be tougher. It's not a huge gap, and Freeza has some techniques that are good for stalling for time.
He done well in the beginning but he still got Stomped in the end, Kid buu just wrecked him after bad and if he was SSj3 he would of equaled him and had a long decent fight not land 2 hits and then get stomped
He's SS3
tier. As in, he's in the same general realm of power as them, demonstrated by his ability to actually fight a SS3-tier powerhouse. Like how 100% Freeza is in the same general realm of power as Goku but is still weaker. There's simply no way he can go toe to toe with Kid Buu if he's on the same level as a weakling like Vegeta.