I am playing as Riftborn(I know they get 1 less movement from Wary Travelers I) and all my ships have 3 less movement points on the Galaxy map compared to Edit Ship screen. I wasnt realy bothered by this until I saw my Spirit (hunter) ship have only 4 movement with Hyperium Engine.

Steam screenshots below.

Spirit with 7 movement on Edit ship screen:

http://steamcommunity.com/sharedfiles/filedetails/?id=933470006

Spirit on galaxy map with 4 movement:

http://steamcommunity.com/sharedfiles/filedetails/?id=933470030

There are no global events reducing movement speed.

I think would be welcomed if you provide a save file so the Devs can see the issue.

Yep, saves and Diagnostics files would help us understanding what's causing this :)

3 or even 4 missing movement points.... sorry but i have to laugh.

Cause 6 missing points on my side, custom race mainly based on vodyani.

Is that not the number on the ship design pannel that is wrong, instead of the ship speed ? All modules on medium ships are modified by x2 multipliers, but speed modules are an exeption (modules applied for the single ships or for the fleets) since a very long time. I tought it was intended ( i dont know anymore lol) but i never noticed the ship design pannel counted the speed module as x2.

Here's the Steam thread if you're interested:

http://steamcommunity.com/app/392110/discussions/0/1291817208507842005/