Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to Windows performance on Cloned disk,
If the HDD is sluggish and unreliable, has experienced multiple OS upgrades throughout its life (for example, from Windows Vista to Windows 7 to Windows 8 to Windows 10), all user files have been duly backed up, and/or all crucial apps can be reinstalled, I would then suggest perform a clean OS instal on the SSD.
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