With the name of Allah Almighty and Assalam o Alaikum to my respected readers I want to say,
Same hashrate would likely have both positive and negative effects as well like more decentralization and reduced inequality as positive effectives. while reduced security, increased latency, less efficient mining and potential for gaming the system would be negative effects.
The current system despite its flaws has proven itself relatively secure and efficient one.
best of luck
KINGs100