My seven year-old former Windows 8, now Windows 10 for the past 4-5 years, runs like lightning. What you put on your computer - how you use your computer - how you maintain it and either keep it updated, or decide not to, outlines it's capabilities and performance. A majority ruin their computers surfing at the bad-guy places. Or they choose to open email attachments without more preparation on what to avoid.
Even works that way with Ubuntu/ Mint and those-2 have different sets of problems.