I heard about Frida but never tried it myself yet.
The thing with Xposed that makes iteration slow isn't even the fact that you need to compile your module. That part is fast. You also need to reboot the device to apply your changes, that's the slowest part.
The thing with Xposed that makes iteration slow isn't even the fact that you need to compile your module. That part is fast. You also need to reboot the device to apply your changes, that's the slowest part.