Is there a way to get stable midi-timing out of pd-0.55-0 on ubuntu 24.04?

Currently it's irregular/noisy, especially noticeable with fast repeated notes.

for example (hi-hat roll): 

[metro 30]

|

[42 64 10(

|

[makenote]

|

[noteout 10] -> alsamidi -> Linuxsampler (drumkit)

reveals this.

Tim