Computer running hot

All audio and/or video listening, watching, or streaming place heavy loads on the processors, thus, generating a lot of heat that needs to be dissipated. This means the computer case gets very hot and the internal fans start running faster to dissipate the heat. You should watch the temperatures closely when doing the aforementioned. Overheating the computer may cause sooner than normal failures from heat damage.

You should install a utility to monitor temperatures. You will find them at the App Store and at MacUpdate. I use a shareware utility called iStat Menu. CPU and GPU temps can reach 95ºC under heavy loads. The processors have built-in kill switches that will shutdown the processor when it reaches a cutoff temperature around 105ºC. This shuts down the computer in order to help prevent damage. Once the computer returns to normal idle temperature, you should see a drop down to around 40ºC, plus or minus depending upon the particular model.

Heat can also be caused by a runaway or crashed process. This can be monitored using Activity Monitor.

Using Activity Monitor

     Use Activity Monitor on your Mac

     Runaway applications can shorten battery runtime, affect performance, and increase heat and fan activity.

Using Activity Monitor Part 1- CPU and Memory

Using Activity Monitor Part 2- Energy, Disk, and Network

No, there is nothing you can do because the processors are being taxed by specific types of uses that simply require a lot of processor usage and result in drawing more power. Clearing memory only helps if you don't have enough memory for the software you are running concurrently. Many laptop models do not have user-upgradeable RAM but if yours does, then visit OWC to see how much RAM you could have and add the maximum you can afford.

I have no idea what your computer is doing since I cannot see it. But you can use Activity Monitor when running a program like HouseParty to see if may be having a problem causing it to crash and causing the processor to run too high. Take care to be sure you are using the latest versions of your software, and that they are compatible with your hardware and OS version.