From Karachi, attestation for degree from UAE embassy in Islamabad takes 5-7 days. It depends on what basis your visa is applied, if its degree then it should be attested; if you switch job then your new salary should be above 12k to avoid ban while if your basis of visa is HSC (Intermediate certificate) then the banning salary is under 6.5k. So, a lot of people even engineers get visas on their HSC cert.
When I went to UAE for job hunt; I got my degree attested from HEC, Ministry of foreign affairs Pakistan, UAE embassy, ministry of foreign affairs UAE in Sharjah.
So, once you get your degree back attested from UAE embassy, go to foreign affairs office UAE in Dubai or Sharjah.