I think that level of sophistication is typical of soft cores. If you need a high performance CPU you don’t use a soft core. You use a soft core when part of your FPGA project can be more easily expressed as a CPU, but still needs tight coupling with the rest of the FPGA.

This is meant to compete with Cortex-M1 and MicroBlaze, not with Cortex-A78 or Core i9 or something.