Is it a 386SLC or a 486SLC model? The 486SLC(2) was actually a pretty potent CPU, at least on benchmarks. Integer-based 'marks small enough to fit into cache scored almost in the same ballpark as a real 80486. Granted that's the most useless kind of benchmark for determining real system performance, but... that's what Dhrystone is all about!
(The *stupid* thing about that CPU was of course its 24 bit address bus. The 386sx sort of made sense in 1988, not so much in 1992.)
Speaking of useless benchmarks, I screenshotted the OP's program results alongside Speedometer 4.0's running in BasiliskII on my Opteron:
They come out in the same ballpark although the actual result varies quite a lot from run to run, undoubtedly a consequence of the JIT compiler rather than anything to do with the program. It is mildly impressive to some degree that the emulated performance in some runs is close to 1/10th that of Dhrystone running natively, I guess.
(This is a recently built-from-source Basilisk II binary which seems to be both wickedly fast and wickedly unstable. The 2.8Ghz Opteron is scoring over twice what a 2.0 Ghz Mac Pro scored in Speedo-4.0 using an older binary dating from when BasiliskII was in the Ubuntu package collection, and I *know* the 2.8Ghz Opt isn't that much faster than the M'Pro.)