Maybe you could change your HDD -> SSD? I mean if you still do have an HDD in your machine, I don't know.
The age difference of your mentioned machines might be as much as 5 years, I assume. The first HP Z210, against the latest MacBook makes 5 years, if I googled it right. I would still say the HP with XEON E3 with 8 threads should hold up it's own against a 2015/2016 MacBook in processor performance. Probably with graphics performance too. Maybe not against a MacBook Pro 15", though, because they've got a modern latest i7 with 8 threads, and models with DG (Discrete Graphics) do have very impressive graphics power also.
Maybe you should also check the background processes going on with your system. They might unnecessarily slow down your machine. Try to get rid of any unnecessary background process.
I don't know muvh about windows OS, but in a OS X environment, you could have some ongoing software which can slow overall operations. For example back-up software (Time Machine on Mac, maybe CCC, the software I use). Maybe Drop Box (which I use also). It too might take quite a few processor cycles when updating it's state and local cache. Depending on one's DropBox usage levels, of course.
Antivirus, antimalware and firewall software sometimes can, every now and then, add up with each other, and slow all operations on any given machine. Especially so with a HDD mass storage solutions.
AC25, Rhino6/7+Grasshopper, TwinMotion • Mac Pro 6,1 E5-1650v2-3,5GHz/128GB/eGPU:6800XT/11.6.5 • HP Z4/Xeon W-2195/256GB/RX6800XT/W10ProWS