We airlifted M777 howitzers to them in the blink of an eye, by the standards of government/military bureaucracy. Meanwhile out here in the First Island Chain we've been begging for reinforcements/gear/funding for the inevitable fight with China and THAT shit is definitely being slow-walked in comparison.
There are also larger issues to consider beyond just "we want the help the Ukrainians". The best stuff we can send has a bunch of sensitive NATO/US technical information (radio comms, etc.). Do we want to risk that gear falling into Russian hands (and by extension probably getting shared with China)? If the answer is "no", we either have to send alternatives or send the equipment to depot maintenance areas to have the sensitive tech removed. That takes time.
Do we want to risk escalating the war outside of Ukraine, if the Russians respond kinetically to armaments shipments? The answer is again an emphatic "no" from almost every nation except maybe Poland.
Hence the popular snarky refrain: "NATO will fight Russia to the last drop of Ukrainian blood". Western governments and people will "stand with Ukraine" as long as it doesn't involve them really risking anything (such as themselves being on the receiving end of Russian missiles or artillery).