MacBook Pro 2017 suddenly became very slow — even after reset & OCLP. What could be the issue?

My MacBook Pro 2017 was working perfectly fine until last year, but it suddenly became extremely slow. Whenever I click on anything, it takes around 1–2 seconds to respond.

I even formatted and reset the entire hard drive, but there was no improvement.

Later, I found out about OpenCore Legacy Patcher and installed it. It does bring the latest features, but the performance is still the same — very slow, just like before.

Has anyone faced this? Any idea what the actual problem could be? Is it hardware-related or something else?

submitted by /u/Emotional-Job-9292
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