Nanopolish call-methylation Processing Speed

[Azjer2014]

Hello, I'm using nanopolish call-methylation on an Ontario long read data with an average read depth of 35. I'm using 40 processors with 4 GB of memory per processor. I'm using the standard parameters (-t, -r, -b, -g). The job has been running for 12 days, and it has only completed processing chromosomes 1-4 and 10-22 so far. I'm wondering if there are ways to speed up the process, or if this long processing time is expected for this tool?