Aspire 5 A515-52-53GR Internal SSD is slow in Reading and Writing
Can anyone help me on this. I bought this Aspire 5 A515-52-53GR laptop. This model comes with a 256GB SSD. I believe it's on the M.2 slot. I benchmark the internal SSD with CrystalDiskMark. The result was terribly slow. The sequential and random Read and Write speed was 30 Mbyte/sec. My thumb drive is even faster than that. The speed was confirmed when I download and upload a huge file through my home network with a 1 Gbit switch. The file transfer speed was maxed out at 27 Mbyte/sec. I boot the laptop to the UEFI (BIOS) mode through Windows 10. Change the Sata mode to AHCI instead of "RST with Optane". Restart the laptop and re-run the disk benchmark software. The sequential and random read/write speed has gone up to 400 MByte/sec, which is good. However, once the laptop goes to sleep or I shutdown the laptop, the next time I wake up or reboot the laptop, the speed will go back to 30 Mbyte/sec. I have already did all the updates for Windows 10. According to Microsoft, there is no driver updates available. I found the only way to increase my SSD read/write speed is to go into the UEFI mode and reboot from there. You can't expect me to do that every time, right? This is my first Acer laptop. Any advice?
Thank you in advance.