Could be, but it could also have not much (nothing?) to do with hardware.
Anecdotal: back in the late 90s, or early 00s, unlike now, the pc hardware got old really fast in terms of performance. Unlike a classmate of mine I didn't keep up with hardware changes. When I bought my hardware and played games they ran really good, but after a while my pc was not fast enough even for low graphic settings, and the games stuttered really strong with fps probably below 30 fps and around the 20 fps mark (only a guess). At first this was horrible compared to the smoothness of playing games directly after buying the new pc, but after a while I got used to it and couldn't understand why my classmate (which kept up with the new hardware that came out) could not stand to play games on my pc. Later I bought a new pc and could play the games with smooth fps again. When I now played games on slow hardware I could not stand it, just like my classmate before.
Maybe this is (in some cases) also the case with people who have no problems with the performance of Atom.
Personally I also find the performance of Atom could be better (on both Windows and Linux) with a 5820k @ 4Ghz, 32 GByte Ram and installed on a SSD (Crucial MX 100/512 GByte). But I only try it from time to time to see how much better it got compared to my previous try.
Anecdotal: back in the late 90s, or early 00s, unlike now, the pc hardware got old really fast in terms of performance. Unlike a classmate of mine I didn't keep up with hardware changes. When I bought my hardware and played games they ran really good, but after a while my pc was not fast enough even for low graphic settings, and the games stuttered really strong with fps probably below 30 fps and around the 20 fps mark (only a guess). At first this was horrible compared to the smoothness of playing games directly after buying the new pc, but after a while I got used to it and couldn't understand why my classmate (which kept up with the new hardware that came out) could not stand to play games on my pc. Later I bought a new pc and could play the games with smooth fps again. When I now played games on slow hardware I could not stand it, just like my classmate before.
Maybe this is (in some cases) also the case with people who have no problems with the performance of Atom.
Personally I also find the performance of Atom could be better (on both Windows and Linux) with a 5820k @ 4Ghz, 32 GByte Ram and installed on a SSD (Crucial MX 100/512 GByte). But I only try it from time to time to see how much better it got compared to my previous try.