Using my Magsorc as an example of rotation issues.
When you switch bars there is about a 1-sec lag if not more where my characters will not perform any skills. My characters stand frozen for this duration. Also, though I have switched bars and my screen shows the new bar (back) when I activate a skill it sometimes activates the skill on the front bar instead. Lastly, there seems to be something clogging the information relay as I my skills will not fire at times. For example, back bar haunting curse to mystic orb to wall of elements but the character will get stuck and not throw down a skill, mostly the last wall of elements and i will literally have to continue pressing the square button repeatedly up to 6-7 times before it throws out the skill.
Thus, switching to back bar I become frozen for a second or so, then suddenly it will throw a light attack from a standing position, then I can start my rotation, haunting curse, light, orb, light, wall of elements (won't cast) hit repeatedly, finally cast, switch to front bar, frozen again for a second, then suddenly throw a light attack from a standing position and allow me to start casting my light attack vs spam combo with crystal shards thrown when it procs. When i do throw crystal shards I have about a 50/50 shot of becoming frozen again for a second or so and again not able to cast skills.
It is as if my Gamepad is in molasses with the communication to the game hindered in some way. Before I deleted all add-ons Action Duration Reminder would even log the key press and start counting down the duration without the skill registering or firing on the screen.
As such on all of my toons (not just my mag sorc) are losing 5-10k DPS in the same gear with the same skills compared to what I currently am able to reach on live.
I have deleted PTS and re-downloaded it. Deleted User Settings gone back to all defaults, Disabled all add-ons, turned my video settings down to the lowest settings, my screen res down to 720p. Tried every witch way I can think of to remedy this and yet it still functions like this no matter what I do.
Except if I turn Gamepad UI off. I do not have a mouse (use a gaming laptop) and simply using the track pad for light attacks and the numbers at the top of the keyboard, I can fluidly switch bars and use skills without gumminess, frozen character, and skills that don't fire.
My husband and I use the same computers, bought at the same time, with the same Ethernet wired internet connection, and sit at a desk made for two right next to each other. The only difference is, he has a gaming mouse and uses keyboard and normal UI (Cause he is an active gamer) and I use a PS4 controller with Gamepad UI (Cause this is the only Computer game I've ever played in my life and we started initially on PS4) He is not having the issues as I am, and he is amazed when watching me try to parse has to how my character is not reacting to my input and the juddery, frozen combat I am experiencing. Again that goes away if I turn Gamepad UI off.
My computer specs are:
8th Gen i7-8750H 6-core 2.2 GHZ (3.9 Turbo boost)
16 GB DDR4 Memory at 2667 MHZ
Nividia Geforce GTX-1060 6GB + Intel UHD Graphics 630 2GB
Intel Optane+ SSD 447 GB
Ethernet Wired Broadband at 100Gb Down/60 Gb Up (Speed test consistently at 96Gb down/56 Up)
So I far surpass minimum required specs, and even beat Recommended specs. Yes, it is not a $4,000 desktop set-up, but I bought it to simply play this game and this game alone...and up until this release, it has done so quite well.
Between the lack of custom scaling now in Gamepad UI and the large swath of issues I am having with Combat in the Gamepad UI, I am becoming very disgruntled over Update 25 Release.