EDIT, SORRY EVERYONE, IT WAS JUST THE TURBO BUTTON, I'M ALL SET NOW.

I recently got an OEM machine, a Tandy 2100, which came with its own 486sx25 motherboard (soldered cpu), no cache, 8 MB ram, cirrus logic VGA card. I've hooked up a startech ide/compact flash adapter.

This is the motherboard, and I've successfully replaced the dallas chip.
https://theretroweb.com/motherboards/s/tandy-2100

While its no pentium, I thought it would perform similarly to other 386 and 486 systems I have... but I was quite surprised when I went to run some software that it ran ridiculously sluggishly! Like sub 386 levels of performance! I ran some benchmarks/tests and sure enough there is something bizarre going on here. IMO a slow 486 might typically score 14-20 points on VGA bench, but it is showing up here at a lowly 3.6 points. Interestingly Speedsys (which took an excrutiating long time to do a partial test) reflects the memory reading speed at sub optimal levels. I didn't see anything in the bios settings to tweak to maybe speed things up... Should I just buy some new memory and see if it works better?