X.Org User FAQ

If you have problems getting X to start please make sure you have configured your X using one of the available configuration tools. If you are uncertain you did please check the ConfigurationHelp before you read any further.
You can find driver related information in the KnowledgeBase.
If you are using a version of X.Org shipped by a distribution you should check there DistroFAQList, too, before you report an error.
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X server information is usually logged in /var/log/Xorg.0.log, which can be consulted for errors or warnings if the server does not function as expected.
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FAQ

hay guys why do u still hav network transparency dont you know its making everyfing slow

Network transparency is actually not the problem: pretty much all inter-process communication uses local UNIX sockets and shared memory, which is ... exactly what X uses! Shocked.

A lot of the problems with X are related to round trips: many events that X sends to clients are actually just prompts for clients to send another request, block, and wait for a reply actually containing the information you need. In turn, those requests will probably get stuck behind rendering requests from other clients, adding huge amounts of latency. Also, many operations look something like this: request from client A -> event sent to client B -> request sent from client B -> reply sent to client B -> request sent from client B -> client A's original request fulfilled. So, by the time you've scheduled ten times, a perceptible amount of time has actually passed.

tl;dr: It doesn't.

How to clone and build Xorg

See Peter's instructions at: Quickstart for those that do not use jhbuild

           # Quickstart for those that do not use jhbuild:
           export PREFIX=/opt/xorg
           export LD_LIBRARY_PATH=$PREFIX/lib
           export PKG_CONFIG_PATH=$PREFIX/lib/pkgconfig
           export PATH=$PREFIX/bin:$PATH
           export ACLOCAL="aclocal -I $PREFIX/share/aclocal"

           git clone https://gitlab.freedesktop.org/xorg/util/modular.git util/modular
           echo "util/macros" > built.modules
           ./util/modular/build.sh --clone -p -f built.modules -r `tail -n 1 built.modules` $PREFIX

           # Re-run the last command until a build succeeds.