Sad confession: So, I switched to W3 Total Cache which was recommended by most webhosts. It was also the most highly-downloaded WordPress cache plugin. So much for popularity. I had a love-hate relationship with W3 Total Cache all that time that I had it installed. My food blog‘s pages loaded faster without it. The only reason I retained it was because it kept the server load down.
Proud confession: A few hours ago, I discovered Wordfence which is essentially a security suite BUT with a built-in caching feature called Falcon Engine that can be optionally turned on. I opted to turn Falcon Engine on and my, oh, my. My food blog is loading much faster and the server load is stable.
Goodbye forever, W3 Total Cache. I will not miss you at all.