A measure of running bad (Maybe). A negative 12bb/100 hand swing from 2023 to 2024. 
The sample is about 18k hands on each platform. So smallish sample size. Variance can easily cause this swing over that amount.
The hands were played on different platforms and at different buy in. The lower stacks played on ACR is where performance took a dive. 
Its not an apples to apples comparison but Ignition seems to work better for me.

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Yes, that is correct. Best advantage is tracking software only allows the user to see stats verses the current table. So depending on how long staying at a table they only have that hand history on play.