Got a Lenovo Ideapad 330S, mem: 8GB, ssd 256 and I am pretty amazed at its performance. It is used to the max because the SSD has only 30 MB left, but I usually have lots of stuff open, several browsers etc and also several Studio's. So I agree with Ronald and blame the project you are having to work on. Of course 150+attrib-entities are difficult to shrink. Your best bet is convincing the customer to split the project into several smaller projects. Separate the separable function areas, even if they are small. Microapplications are popular these days.
Btw. version 8 takes 350 MB memory to run local, I sometimes run a little short on my 8GB. 12 would be enough. Above that is a waste of money.
As advise however I would increase the processor power. Generation 10 i9 processors are at the market now running at 5.3 GHz. https://cpu.userbenchmark.com/Compare/Intel-Core-i9-10900K-vs-Intel-Core-i5-7200U/4071vsm153577 Should make a difference, don't you think?
Unfortunately, setting the auto check delay only does exactly what it says, “delay when it checks for errors”. Each action can still take more than 5 seconds before I can do anything, even on my home pc with much powerful specs.