I believe that is not necessary since your processor is behaving as expected. Bear in mind that you will have peaks whenever the workload is too heavy; however, based on the information provided your system is working fine. The TCASE temperature for your processor is 73.0 °C as long as you stay under that parameter your system will be fine.
For further reference visit Intel® Xeon® Processor E3-1200 v3 Family: Datasheet, Vol. 1.
But if u saw the pic the temps on some cores are reaching almost 100°C and since i do a lot of long video encoding im kinda scared the cpu wont last long
At idle the cpu downclockes to 700mhz and the temps at that time are 33-34°C. During web browsing- 8/9 tabs open i get like 40-45°C. I've already replaced the stock cooler with the Hyper Evo 212 and the temps are much, much better. 55-56°C max during 30min video encoding.