How long does it take for Multibit to synchronize an old wallet?

[Bitcoin]

How long does it take for Multibit to synchronize an old wallet?

I'm trying to restore my old wallet which I had created on Multibit around 2016 and held a fraction of a bitcoin, as far as I can remember.

I have not touched the wallet for years until today when I found the Mnemonic words by chance. So I have downloaded the ancient Multibit client and restored the wallet. Now it is trying hard to synchronize the wallet. I have a decent laptop but the fan does not turn off while it is syncing. So I suppose there are lots of calculations involved. Though I have no clue what is that.  In any case, it is so damn slow: after several hours only 20% is synchronized. Why?

I'm wondering why does it take so long? How long should I expect for it to be fully synchronized? and how much disk space will it need?
I'm worried that it fills out laptop's 256GB SSD and still does not sync.

Source: How long does it take for Multibit to synchronize an old wallet?