run process explorer concurrently (it should actually be in your startup folder - so it autostarts at boot time) sort your processes by cpu useage. Open a project and observer cpu useage in process explorer. note which processes are using most cpu, (write it down or screen shot it).
Also note how much cpu cycles your DAW and plug in are using.

Save your project, run it again and check process explorer, (write it down or screen shot it) compare results, if nothing has changed its not your software, its your hardware glitching. If processes are actually requring more cpu, investigate them. You may be able to adjust their process priority so they don't have to fight with other processes for resources, you may also find it helpful to off load the process to a desiginated set of cores, like only use core 3 &4 for the daw or plugin. It will require a small bit of experimentation to arrive at an optimal setting, but its not difficult or time consuming.

process explorer free, available here
https://learn.microsoft.com/en-us/sysinternals/downloads/process-explorer
suggest you download the entire set of tools, its the only way to understand what your computer is doing under the hood.

https://learn.microsoft.com/en-us/sysinternals/downloads/

your cpu might also be glitching under load, due to poor thermal coupling of cpu to heatsink or dust accumulation insulating your heatsink which should be spilling heat, not holding ont it thru insulation. Insufficient ram can also be a problem, where processes have to be dumped from memory to disk, to make room for other processes, if too much shit (simultaneous CPU access) is occuring the processes are qued, leading to delays, when the que exceeds the cache size, it has to be written to disk, and Disk i/o will slow things down.

But you don't really know whats going on or where your problem is, until you use the diagnostic tools above to probe your system and see what it is doing, when you run your DAW and plugins..

 

Cheerz guyz thanks for your help, i've had the laptop a while, so decided to look for a new one

 

you can still keep the old one and have a backup and discrete separate workstation to use for other projects/testing etc...

ps no guarantee the new one will work any better. I've always been a proponent of the devil I know, vs the great unknown.... nothing pisses me off better than blowing hundreds or thousands and finding out I was just pissing in the wind..

 

Optimize your computer using this guide.
https://audiosex.pro/threads/the-ultimate-guide-to-optimize-your-windows-pc-for-the-stage.55902/