Currently, I am in the second year of a Ph.D. program. However, I am really worried about the amount of time Faculty takes to confer the degree, since It could be detrimental to my academic and professional future.
Many academic positions after graduation are dependent on proof of degree completion, so this could potentially be a problem. The NSF math postdocs, for example, require a signature from the school that you've completed your degree, and some positions explicitly require a copy of your transcript or diploma that indicate your completion of a Ph.D. program. The institution where I completed a postdoc was in this latter category, and would only issue an informal offer (and not an official contract) until they received final documentation of my degree, which in my case took several months to arrive after graduation. One practical problem I faced as a result was difficulty arranging for housing at my postdoc institution; most rental companies want to see their tenant's signed contract as proof of income. I am also aware of tenure track jobs where the contract specified that the tenure clock only started after conferral of a degree. I suspect some institutions would be willing to bend the rules a bit in unusual circumstances, but it certainly could be a problem. (Note that this answer is based on experiences of myself and colleagues in the US. I have no idea how this practice varies in other countries.)
It's understood that it takes some time from the date the thesis is turned in until the examination, and then again from the examination to the final degree conferral. Consequently, most employers—business, industrial, and academic—who hire Ph.D.'s will be aware of this, and will allow people to start working once they have finished the defense (and sometimes even before then!).
The date of conferral has some impact on when you're eligible to apply for certain programs, but even then, it's usually a window of X years after the conferral date, so you're not going to "lose out" on opportunities just because your faculty takes longer than average. Even in the event where it's after the date of defense, usually schools can issue documentation that the defense took place and was successfully passed.
Once you've passed your PhD, ask your supervisor to write and sign a letter (on headed paper) that says you've passed.* (Explain to your supervisor why you need it.) That letter should be convincing enough to anyone that asks, even though it isn't a formal certificate.
*Selection of the right words is crucial. All statements should be honest.