did you try adding the resolutions.dylib module to the modules folder as for trackpad if you do not like the performance of your existing trackpad try another kext for it. edp had a few different options with different characteristics.
theres a guide here https://osxlatitude.com/index.php?/topic/6372-dell-latitude-5x30-6x30-clover-install-guide/?hl=%2Be5530+%2Byosemite search the forum
have you tried adding voodootscsync.kext it sounds like you are having issues with tsc. i think you can modify it in clover you might have to look at clover wiki under cpu section. clover might not be reading your frequency/bus speed properly. also try a more current clover if possible.
i think you use find and replace, then tell it it's a plist edit in kernel and kext patches with clover configurator.
tell it to find 0x02148086 and replace with 0x0a168086 then check the plist edit box at the end of that entry line.
http://www.nextofwindows.com/how-to-make-uefi-bootable-usb-flash-drive-to-install-windows-8/
http://www.eightforums.com/tutorials/2328-uefi-unified-extensible-firmware-interface-install-windows-8-a.html
just use google. your bios has to be in UEFI mode.