But even the amount of time they're doing "work" they're mostly managing refcounts and walking MRO chains and formatting strings and doing hashtable lookups to

But even the amount of time they're doing "work" they're mostly managing refcounts and walking MRO chains and formatting strings and doing hashtable lookups to find local variables at runtime. Python code is 20-40x slower than C code. That other 19/20ths of the time is the bottleneck, not the memory bandwidth of the actual work. Same with your electron frontend.