A fast browser would also be dependent on other factors:
OS, processor, memory.
What's running in the background?
What's the cpu type and available memory?
Is it conole or graphical?
How does it render graphics if it is graphical?
Does the machine it is on have a graphic card- non integrated?
Links and elinks are much faster. Console browsers.
Dillo, amaya, w3c are fast. graphical browsers.
If you can build the package yourelf, you can set the build flags and optimize it on your own.