MacBook Pro running Big Sur is really low!

First, I know a MacBook Pro (Retina, 15-inch, Late 2013) is an OLD computer. I need to invest in a new one, which I will when I can afford it, currently I cannot. Which is why I purchased this like I did when it was new. All the bells and whistles. Top of the line at the time. 2.6 GHz Quad-Core Intel Core i7. 16 GB 1600 MHz DDR3. NVIDIA GeForce GT 750M 2 GB. Intel Iris Pro 1536 MB. 1T. I am running the last version of Big Sur of course.

I read another Community Forum Question about an iMac experiencing the same. I downloaded DriveDX and got a really comprehensive report. Most of it is perfect and the indicators are at 100%. It says 0 Issues found. Follows are the areas where it is less than 100% yet all still showing OK.

Wear Leveling Count: 84%

Power Cycle Count: 51%

Temperature (C) 43%

Power On Hours: 96%

Host Reads MiB: 99%

Host Writes MiB: 99%

Unsafe Shutdown Count: 99%

Nothing is indicated as failing. Nothing is indicated as having a warning. Everything else shows that the current value and the worst value are equal and well above the thresholds.

I realize the processor could be affected by the heat of South America where I now live, but could that account for why this thing is just CRAWLING? I am running 2 screens.

When it first started running slow about a year ago I put it away and started using a new iMac, but I could not afford the drive space when I purchased it, and now I have a project that requires running the MacBook Pro again. I wiped it clean and reset to factory defaults before starting to use it again.

I've attached the DriveDX report.

I hope this is a simple fix that I just am doing something wrong that can be remedied because all the numbers on this report are so good. Thanks in advance!!!