Injections are super thick and slow?

I've recently switched from oral estrogen to injections (esrtadiol valerate). The medication is super thick and takes me (at least what feels like) a solid minute to draw the dose, and then another to inject. As in it's so thick I literally can't do it faster. I've already gotten some noticable differences so it's clearly working better than the pills did for me, but I was wondering if this slowness is common?