Loading minimal Map is much slower in my game than in fresh project - what can cause it?

Hi,

I am trying to optimize my level switching times and am noticing that just opening a simple map with 4-5 simple actors, meshes and a light, takes a relatively long time in my game.
About 1-2 seconds. In a freshly created game the same load is almost instantaneous.

What causes this?

I have tried to set my Gamemode to ‘None’ and it still works but does not make it any faster.

Does anyone have any ideas why its so slow?

Cheers,

Bumping this out of curiosity.

Wish I had something worthwhile regarding this subject other than asking things like what map are you transfering from? Do you have any constant heavy math running in the background of your project or on your character things like that.