why Hashcat v6.2.5 is slower than v5.1.0

[Snoopy]

*ttp://registrationcenter-download.intel.com/akdlm/irc_nas/vcp/13794/opencl_runtime_18.1_x64_setup.msi

this is the direct link for cpu opencl

install this and see the output for hashcat -I

your cpu should show up with opencl 2.1