Poor performance on Rollover

Hello, we have been working on our charts for more than a year now. The performance is really bad recently, it uses 100% of CPU when hovering on the chart, it seems to be an issue with the RolloverModifier, if we remove it; everything feels smother and the CPU usage is on normal levels. We tried rolling back to an old version of SciChart, but the problem persist. Any idea of what can be the issue?