iMac 2017 5K 27 inch: Slow after replacement of Fusion Drive with SSD

https://www.samsung.com/ca/memory-storage/sata-ssd/ssd-870-qvo-sata-3-2-5-inch-1tb-mz-77q1t0b-am/

Your numbers are pretty close to the Specification from Samsung

Have you enable TRIM ?

Have you checked with Samsung for any possible Firmware updates for this Specific Drive ?

Sushil Kumar Kamaraju wrote:

TRIM is enabled. I do not know how to update internal SSD on Mac OS. Is there a way I can speed up my present system other than going for external NVME?

Other than what you have already done and keeping the existing hardware = machine ?

The only other Option would be NVME

Softwarewise >>

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