OK... off topic... but I do find it funny that we've come so far in our modern age that "2 minutes longer" translates into "very slow". Considering that many test cases, if they were run manually instead of automated may take 20-30 minutes to execute once all the "paperwork" is done. Just find it a bit humorous.
That said... This is something that has been mentioned several times on these forums. Some things to try:
1) Under Tools | Options | Engines | NameMapping, uncheck the option that says "Search for visible objects first".
2) Under Tools | Options | General, there is a section about Windows Store Applications with a single checkbox. Uncheck that item, restart TestComplete, and try again.
These are two things that I know of that might correct your problem. If not, this might be something to address with support directly. https://support.smartbear.com/message/?prod=TestComplete