Unreal 4.12 startup very slow

Hello!!

After clearing the cache in the AppData/UnrealEngine folders (Reason i did this was to figure out the Swarm startup problem…found out it was disabled on my partners end) , for some reason, UE4 starts up very slow now (takes about 10-12 minutes to startup). Is there anyway to solve this?

Marking this resolved due to outdated version. Newer versions are better