Photoshop CC 2014 acts slugish

Question

ever since the new updates and me installing windows 8.1 64bit version OS photoshop CC 2014 has been slugish !
when using mouse to nav" through menus and loading blank page of size 300px x 300 px or size 4320 px x 6480 px.
rendering slow and 70% of the time when using wacom cintiq 13HD pen display drawing with brush some times lags and not show the lines I am drawing right off.
I do have some custom shapes installed a lot really.
and styles and some brushes and Gradients of many different colors and shades.
the brushes I don't normal keep installed unless working on the same subject type design I was working on the day before.
but mostly uninstall them when starting a new project.
I also noticed for some time now since the new releases of the new product of photoshop there is no more PSD preview when opening up files window to view your saved files.
and I for one want that back in the the program.
if I am correct I read most of the forums on here in the past and 100% of the users of photoshop wants that back.
cause using their other means to search for files and open them with is a issue and can't view them as good.
and the icons for them are too small.
I know as a photoshop user I can't see that well to see tiny icons like that in their bridge program.
and I had that on the largest settings to view.
at least the old PSD previewer method we could see it a lot better by our own windows size of a icons.
their bridge preview does not go that large and the widow there is not that great either for viewing !
New issue update:
just tried to convert 2 files on photoshop and it took a long time to do.
and then I couldn't convert to raster image at all.
there was no warning or error messages at all !!
Personal Note:
I think adobe is messing up badly and their not doing their job right for programming their messing up more and more every time they add something new to the photoshop program and its updates.
and when they take something away that was wanted and needed mostly that all users want to keep they ended up messing up the code of their software with loads more errors and issues.
and you can't tell me photoshop any version of their software is not a memory hog !
when it does stress alot memory on your video card and needs to use it all up, or it becomes slow and some times freezes.
you can have a 4gb video card to a 1T + video card and it will still do the same thing.
theres a alot of issue there with that.
and I seen and read about loads of users on this forums board and others complain about.
and even most of them sent in emails to their support to complain about it and they still do nothing to fix that issue.!
and if photoshop is not a memory hog on the video cards ? how come Gimp and Sketchbook pro and manga studio all work flawlessly and smooth as hell without using as much video card memory as photoshop does ?
and their designed to use less and still work smoothly.
and manga studio 5 they have stability program for your brushes to help out with more straight lines and curves and circles and stuff  and photoshop does not ?
and that can be adjust in the brushes software to have full 100% to 0%...
and my pc I custom built my self has more power then most brand name desktop pcs on the market for a cheaper price too, cause in most cases with brand name pcs your paying more for the brand name then whats in the product !!!
so my pc has AMD CPU 8 cores 5.19ghz open all 8 cores.
32 GB ram and 2gb Radeon R9 XFX 270X video card for now.
maine hard drive 512Gb SSD samsung and 2nd SSD 128GB samsung 3rd Western digital 2TB HDD.
Main monitor is ACER 10 point touch screen.
Art: using wacom cintiq 13HD pen display.
all drivers for OS and photoshop and wacom devices up to date.
so any advice would be good please ?

Answer 1

my cintiq 13HD is not companion Tablet pc.
my cintiq 13HD is just the pen display !
see the difference there tablet pc vs pen display.
all it is, is a 13" HD monitor display with wacoms tech, to draw on it.
its not a stand alone tablet pc / wacom pen device.
so the wacom cintiq 13HD pen display monitor will not slow down or effect the programs process speeds at all.
its the same as a regular HD lcd monitor just smaller.
this my wacom cintiq 13HD pen/display http://www.wacom.com/en-us/products/pen-displays/cintiq-13-hd
this wacom cintiq 13HD companion tablet/ped display pc Cintiq Companion 2 | Wacom
they didn't have the first wacom cintiq 13HD companion tablet on the website anymore so this the only link I have for it.
but any way if I had the money to spend out on the wacom cintiq 13HD companion tablet pc I would gotten it.
and used it without attaching it to another pc.
but the reason I didnt get one right off, is cause it does not have the all the feature for a tablet I would like to have.
1. WiFi + 3G or 4G LTE.
2. need more USB ports at least 1 more.
3. large SSD drive
4. more physical ram then 4GB.
5. more processor power then dual core if its dual core. not sure what type they got.
but most tablets is dual core.
6. higher memory for video card processor.
specially for the money your paying for it..rofl
cause I know your paying out more bucks for the brand name then you are for the parts in stalled in it.
I custom built desktop pcs for a long while now since 1995. ect.
and puting a desktop pc together cost less then having to buy a brand name one with less physical ram and video card ram and less SSD and HDD drive space.
and you get more out of it and cheaper then from retail brand name pc.
you be able to get and put in more physical ram and install a large SSD drive or HDD drive for cheaper money and even a better video card with more vram and also faster cpu processor speed then brand would have, for even lesser money.
to be honest I use photoshop for my business I do t-shirt and mousepad designs ect... for as a hobby on cafepress.com and zazzle.com and spreadhsirt.com and designsbyhumans.com ect.
and I also do themed and art designs for WB,inc.
and lot of the effects I do for my business and for WB are from and on photoshop for brushes and lighting effects and stuff.
and with photoshop cc 2014 working so crappy lately like it has been it's starting to piss me off.
and I am about to file a complaint with the attorney generals office cause of it.
cause I am paying for the product I need for work and stuff and their not doing anything to fix it.!!!
I complain to them about in live chat and they did nothing !
so next step was here the forums board and if nothing here for answers other then the basics.,
then I file my complaint and take court action.!
and I will be post about getting other customers to follow and sign up to join the court case.
and this forums board wow is it slow.
and I have a 50+ mbps speed my speed is good from maine to ca and lond area networks.