VinLom

Hello everyone! I have a Monoprice maker pro and working on a project. my model I want to print has a big base and some stuff on it but higher up on my model i have smaller things that need to be printed slow. Is there a script or add-on to allow me to set multiple speeds? like for example: layers 1-100 print at 60mm/sec and layers 101-150 at 45mm/sec or something like that. Since I'm printing at 0.035mm resolution, the big base would take alone like 16h before it gets to the other layers since the other layers need like wall speeds of 25mm/sec and travel speed slower since they are very detailed and thin parts. its 1 model that has to be 1 piece so I cant print the base separate and glue it together. I have split other prints before but this one has to be 1 thing. with the settings i want, it would take 1.83 days to print