For some folks with higher CPU utilization, network activity, sluggish browser response, and/or slow/repeated page loading...
The new ads get updated each time a certain number of seconds passes. This causes periodic bursts of incoming network traffic to occur, followed by periodic increases in CPU utilization, while the new ad contents get processed and rendered. Apparently, this is set up to be a fairly high priority operation for the AK site. If your available memory is below what is needed, then interactions with memory swap files may be significant, slowing various responses, such as text entry, and other such.
The only reason I know this is because I have on-screen performance monitoring running, on a continuous basis. I do this so I know what is going on (CPU utilization (per core), network traffic (up and down), hard drive activity (read and write), and memory utilization (actual and virtual). I build all of my own PCs, so I generally have quite a bit of performance headroom. Hence I do not otherwise notice some of the performance issues noted by others.
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In the above screenshot, my performance monitoring is displayed as a part of my background, on the right edge of the screen. There are 4 (violet) graphs representing CPU utilization for my 4 cores. Note the humps, which represent "user" consumption variations, due to ad updates, the humps indicating well over 90% CPU utilization at times. Note that "kernel" utilization stays relatively uniform (lower of 2 lines per CPU core graph). If you look closely, you can see network activity (graphs with red lines) in sync with humps in CPU utilization. The network traffic humps are hard to see, as I have a significantly high speed connection. You can see them if you look close. In any case, these humps in CPU utilization and network activity disappear immediately upon blocking ad presentation.
Notice the difference in network traffic and CPU utilization with ad presentation blocked:
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Considering the demands being placed on my rather well capable PC, by the new dynamic ads, there is no wonder that some folks with less capable devices are having issues to varying degrees.
Some folks have graphics built into their CPUs, rather than on dedicated cards, so some CPU bandwidth is consumed by that, leaving less for other activities. Some, like me, have TV tuners connected via USB, consuming more CPU bandwidth. Some have dedicated amounts of memory being used while running, for various background activities, leaving less available for browsers and such. Some have relatively low bandwidth internet connections, and some are metered/throttled after some monthly threshold is reached. There are other potentially contributing factors.
Personally, I would like to see the cessation of the characterization of folks who voice complaints on this issue as the "regular whiners" on the subject. It is NOT the same small number posting complaints in various threads. I have watched carefully, for many weeks. There are more than a few experiencing performance issues to the degree that they are driven to post about them. Know that there are countless others who are simply putting up with the performance reductions, because they have enough headroom in their devices to be able to tolerate the performance reductions. Many are quietly driven to use ad blockers, so you won't necessarily hear from them. Know that the greatest presentation of ads is for non-member visitors to AK, which are literally legion, throughout the day.
Essentially, there are a lot of variables affecting device and forum performance. Most folks tend to put up with reductions in performance, up to a point, without complaints. If the new ads are being displayed on your device, you ARE experiencing the effects of them. The difference from device to device is in the performance headroom you may have at any particular time. Yes, there could be some operator-related contributions, as well as potential bloat in what folks have running. Just know that, for the most part, issues folks may be noticing are likely due to increased demand being placed on your device resources, due to the new, dynamic ads. This is just the new normal for AK.
The mod staff has no involvement, input, or system access, with this aspect of the forum. This post is for potentially helpful information purposes only. This post is not official information, representing staff or management of AK. It is simply my input, as a fellow member, seeking to provide information that may be of some value...
Rich P