To enable the fps limiter, right-click the Show Overclocking button and select Driver Profile Settings.. From here, find the Frame Rate Limiter listing under the Common subheading and choose an fps limit from the dropdown box. You may need to play around with the limit depending on the games being played and your monitor's refresh rate if you experience any screen tearing or other visual oddities.
Details. Though there is no cost to get into El Yunque National Forest (for hiking, etc.), there is a small entrance fee for El Portal Rain Forest Center. They charge $4/adult and $2/senior. Kids under 16 are free. They collect the entrance fee upon entry to the parking lot. Your National Park Service passes are valid here.
You can read our article on the colective in the link. It cost 40 pesos one way and make sure the driver knows you are going to the ruins in Tulum and not just Tulum. The ruins stop comes first but if you miss it, it will be about 40 peso taxi back to the ruins from the center of Tulum. The colectivo is about 15 minutes faster then the ADO bus and cheaper, but not as comfortable. ADO busses go almost hourly to Tulum ruins. It cost between 54 and 62 pesos each way.