Airport security checks are a necessary evil due to the risks asociated with those who want to impose they way of life on us at whatever cost.

That said, I will say that Chinese Airport Security in general is up to par with what I have seen in many countries.  For example, In Guangzhou three months back I stood in line for 45 minutes waiting for my turn.  It is also nice that here you do not have to remove belts and shoes for the check.  But they force you to remove batteries from all electrical gadgets you may carry, and do not allow you to have a lighter if you smoke like back at home.

I would say it will depend on airport traffic load, and on which airport you use to compare with.  But security itself is as good as any other major airport.

I've found it to be more or less the same as most developed countries I have travelled through. Flying into Guangzhou, the process was less tedious than flying into Sydney's main airport and the airport seemed to be of a high standard.

Lax. But that's okay, in the west it's too overbearing. 

I find it to be far less intrusive. 
But they keep taking my frickin lighters.  Once I had three in my backpack and they saw them all on the xray and took them all.  They were souveniers.

I think they are ok,same as most airports but a bit faster in China,they always find the lighter in hand luggage,but last time i was coming out of Beijing airport there was lots of free lighters to take,obvisiously taken from out going flights,thought that was a nice smart policy

02There seem to be more officers in China. I think they have to seem a bit gruff or are just bored. But when I was leaving China I told the immigation officer that I didn't want to go home and would she say Ted don't leave China and she laughed and did. When I went through security and while I was up standing on the pedistal, I told the same story to the woman than was scanning me. The entire security crew came stood in front of me and said "Ted don't leave China", man I am sorry I did't get that on video. I think security is good, but they need a laugh once in awhile. My stuff went 3 times through USA security and I was just transferring.The USA immigration officer was a prick and I won't put up with him, I was smart ass with him, the USA custom guys laughed so hard at what I had to say, I never declared anything. A Canadian security woman took my chocolates and said I couldn't take them, because she wanted them, she was joking.

https://www.tmz.com/2021/01/18/man-arrested-living-chicago-airport-months-scared-covid/

3 months living in the busiest airport in the world, well that's embarrassing.