I'm managing multiple Google Adwords accounts with different google accounts for each one and each of these separate google accounts has the exact same personal info such as name, sex, date of birth and mobile phone.  Could this somehow be a hinderance to each campaign's performance, because when run them all at the same time the results are flat verses when I run each one by itself?  Could somehow Google see this as the same advertiser and effect the outcome?  
Can Multiple Google Accounts for Google Adwords effect campaign performance
google;google adwords