I believe it’s more a “the PS3 CPU architecture was an absolute nightmare and emulating it is difficult/slow” more than it had anything to do with the graphics rendering portion- which is typically where phones would have made the most substantial advancements. There are specific instruction sets that need to be supported by any CPU emulating PS3 to run anywhere near native speed… And I don’t believe much work has been done for ARM cpu’s to support the needed instructions in mobile devices.
Both glowing portions are natural gas pipes. Perhaps it’s somehow ignited inside the pipes and is super heating them but also somehow NOT travelling outside the two glowing sections and burning the house down???