My experience - just tested.

Aim:
To compare MXF Load times between VP13 and VP14.

Base DATA:

• Canon XF300 MXF Media.
• Project Media Size: 1.11 GBs
• Project Run-time: 3mins 5 secs

Experiment:

• Timed against a iOS9 APPLE Stopwatch.
• Ran alternating, separate iterations of VP13 and VP14 which contained the same amount and same MXF media.
• On closing VP13 and VP14 interrogated Project Manager to confirm their completed closure

Results:

• VP13: 10.1 secs ; 9.4 secs ; 9.7 secs ; MM removed 9.7
• VP14: 14.0 secs ; 12.3 secs ; 12.9 secs ; MM removed 9.3 secs ; Again no MM 9.4

Observations:
Obs 1: Noteworthy drop in load time when Media Manager is removed from VP14 Project. Here that is a difference of between 4 and 3 seconds over a 03:05 project.

Obs 2: However, removal of Media Manager from VP13 makes no difference.

Conclusions:
VP13 would appear to be optimized to load Media Manager and VP14 is not.

Recommendation:
I present these finding to MAGIX for their advise.