SINGAPORE -- Southeast Asia's startup investors are facing greater pressure as returns from regional funds lag other Asian peers like China and India amid a tougher market environment for public listings and slowing business, according to a new Google-led study. The annual report, which was released on Wednesday by Google, Singapore state investor Temasek Holdings and U.S. consultancy Bain & Co., showed regional venture capital firms are facing difficulties amid global interest rate hikes and worsening economic conditions that are weighing on sentiment.