TheStreet's Jim Cramer sheds light on Twitter's latest quarterly report. Investors are worried about the slowing growth rate of new users to the micro-blogging website, which sent shares on a double-digit decline on Tuesday. Cramer says if the company was well-run, it could have much better monthly average users, but it's hard to tell what metric they're using to gauge success. He says the premise of Twitter is terrific, since the content is created by users and it has the lowest cost. Cramer warns the company is slowing, which isn't a good sign for an early stage company that has a high valuation. Shares of Twitter remain down 12.6 percent on Tuesday morning.