Earlier quoted context omitted.
Isn’t that silly? I could run linux (with GUI) just fine on my Pentium 3. This phone is like 8 times faster just based on clock speed, not to mention memory. How can it not drive a UI without lag?
The problem is that it's not 1-1 with X86, especially in regards to graphics capability (The GPU is really the weak link on the current PinePhone). The GPU for example uses Tile-based rendering, which requires software optimizations to work best... Plus the GPU is just plain slow. It's a first generation ARM Mali graphics core intended for OpenGL ES 2.0 afterall.
I find it hard to believe a ARM CPU would need significantly more cycles to perform the same operations.