Sketchup files earlier versions than 2017 RS1 load scenes slowly


#1

Maybe this is by the new configuration requirements, but all scenes worked on sketchup 2014-15 and 2016 load slowly (2-10 minutes)
I am with : CPU: AMD PENOM X4 B60 3.37 GHZ, GPU: AMD: RADEON GIGABYTE 6850 OC ; MEMORY: 8GB 1333 GHZ ; MOTHERBOARD GIGABYTE M4 EVO
WINDOWS 10 PRO X64
SKETCHUP 2017 RS1
Any suggestions?