Unreal engine 4 package project problem

Unreal engine 4 package project The compilation time is no more than 3-4 hours.
Computer info
Windows 8.1 pro x64
Ozu 4 gb
Cpu Intel core duos 2.80Ghz 2 yader
1GB Geforse gt 250 256bitwhat is the problem?

Versia 4.9.0