Question regarding Spark interpretation

Hello,

I have some lag and stutter in a fabric modpack I am working on and I was trying to figure out what the issue is.

Modernfix says...: ThreatExecutor.waitForTasks() 62.30% (for total mods)

Is this an issue? https://spark.lucko.me/eYf3BB93fl
can I eliminate it?
spark is a performance profiler for Minecraft clients, servers, and proxies.
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