Speed difference between 2.0.0-beta.6d53e40 and 2.0.0-beta.4368ca8

[Ruud-DRS]

Hey,

I was testing a bit with different versions and trying to load a STEP file of 13.5MB.
I found out that the older version 2.0.0-beta.6d53e40 (14 seconds) is almost twice as fast as 2.0.0-beta.4368ca8 (28 seconds).
Does anyone know the reason for this difference?

Here is a link to the comparison between the 2 versions:
v2.0.0-beta.6d53e40...v2.0.0-beta.4368ca8

[wxfred]

And ... the version 0.1.15 which is used by Cascade Studio may be the fastest init and lowest memory taken version. Why?

[FishOrBear]

Is there a test file?