You can download the test suite from the Pointers section at the bottom of this page. For each test, we generated a random list of 100 URLs. As you can see, more script-implemented code is running for the Frontier test case, so the performance of the object database actually is better than the benchmarks show. I ran the tests on a PowerMac 9500, running System 7.5.3. Frontier 4.0, the Finder and Microsoft Internet Explorer 2.0.
File sharing is turned on.
Several agent scripts were running. I assume the performance degradation affected both tests equally. Here's a table listing the results. The first column reports the number of sixtieths of a second used in the file system test. The second column is the same set of URLs retrieved thru the object database.