Left the laptop for 30+ minutes and nothing changed (though it does run a little cooler). According to Speccy, both motherboard and CPU run at 66-67 oC.
For 1] I need to dissasemble the laptop due to its design.
Yes I know, I am a technician myself, so I disassemble mine once a year.
You can still check out if it is ok by putting your hand near the vents. If you can feel hot air coming out of the laptop in a decent amount and through the whole vent, it is probably ok.
Its also summer time, so air cooling systems lose a little of their efficiency. Using the PC in a controlled enviroment by an air conditioner unit, both helps you endure the heat and the machne will work better, IF it was well cleaned.
The bad thing is that there are people who claim to be technicians, they don't do a good job and they get you a lot of money for it.
You must demand a full disassembly, a true clean and not just blowing some air to the fans to throw away some of the dust.
Here, I will show you where the dust is really accumulated. If you wont disassemble it to that point, you can't reach the dust to put it out.
The dust can become really solid and inpenetratable by air, like a small doormat.
Just take a look. This is 12 months dust into my laptop (I cleaned it again a year ago).
https://www.dropbox.com/s/kcxgbntikt2qgea/2015-06-02%2021.56.17.jpg?dl=0
Don't attempt to disassemble your laptop yourself though, if you don't know what you are doing.
Ask a technician to do the job for you. But make sure he/she is trustworthy.
If you know how to do it, just remember to use a dry
cloth or something piece of fabric under it, without any fluff or floss or fuzz, you got the picturee, as I do, so nobody will complaint about dirt and dust. You can then take the cloth out of the house, hit it to remove dust and then go back and clean it.
The red is the place the dust is accumulated. Notice on the right that there is a foamy thing. This is there so when the laptop close there will be correct air flow. Do not take this foamy thing off.
With blue I indicate where the small screws were (2 of the three).
NOW ABOUT YOUR QUESTIONS:
"
How can a script command would be set to parralell?"
Use an event command that is on the third page on Event Commands called Script.
You can use a script command that calls a whole script.
Now imagine this on a Parallel Proccess.
Also Parallel Proccess Eventing is heavy too.
Khas Awesome light Effects with no Effectus is laggy by default too.
Bigger resolution is also laggy.
Parallel proccess is refreshed usually 60 times per second.
So... you got the picture. Something is done 60 times per second. That something might be bad for the cpu, Either if it's a script or an event check
So Bex expressed a good point here. And so ksjp17 of course.