Joomla Core vs K2 performance, which is faster?

Question

PHP

Do you have experience using both in projects - which is faster?
Estimated attendance - 1-2k uniques per day.
There are already 2000 articles + a day is added up to 5 pcs. new.
Versions - 3.4 for the kernel, 2.6.9 for K2.

Answer 1

And if you try, and not guess? After all, there are a lot of factors and the results can be diametrically opposed.