Probably didn’t use the correct post processor, so it used the travel speeds and feeds instead. Marlin needs speed gcode on every line, otherwise it uses the last speed it saw.
I wrote that PP blind. I have never used aspire, if you look through that thread a user was testing it and at least one version was working. Compound that with people are starting to buy old or pirated version on eBay and I think they respond differently to the PP.
I can’t really do much without the software. I highly suggest you stick with Estlcam until you see a reason to change, I never have.
Like I said, I have never used it. I am sure it has some great features. For $2000, not too many $300 CNC users are going to be purchasing it.
Have a look in that thread. I made several tests, if you can find one that puts an “F” command at the end of every line that is what you need. Let me know which one works, because one of them did.
Or link to your file so I can look to see if there any other issues. You have said it didn’t work but didn’t really give any details to what happened.
I have my speeds and feeds set appropriately but aspire pulls the rapid Z feed rate from lord knows where. It had my poor LR2 trying to rapid Z at 3000mm/min. i opened my gcode in notepad and found and replaced all feeds of the rapid “G0” lines and it works fine now.
I’m impressed the machine handled those rates to get the result you got! I once had mine jumping up and down when a bit worked itself loose and took a much deeper than expected cut.