Canadian citizenship will not make the sponsorship process faster. However if you are a citizen, then you can sponsor your wife while living outside of Canada. If you are a permanent resident, then you must be living in Canada when the sponsorship application is submitted and continue living in Canada while her application is processed.
In terms of what you can do in advance, start collecting supporting documentation that proves your relationship is genuine (e.g. cards, emails, photos, letters, bank statements, bills, etc.) and start filling out the forms to see what kind of information you will be expected to provide.
It appears that applications from Lebanon as processed through the Damascus office. This means that application processing times are apprximately 1 month in Mississauga + approximately 11 months in Damascus (although a percentage of applications are processed faster):
http://www.cic.gc.ca/english/information/times/perm/fc-spouses.asp