diff --git a/idea/build.gradle.kts b/idea/build.gradle.kts
index 6b21bbaf054..1f2dfa99789 100644
--- a/idea/build.gradle.kts
+++ b/idea/build.gradle.kts
@@ -155,6 +155,7 @@ projectTest(taskName = "performanceTest") {
     jvmArgs.removeAll { it.startsWith("-Xmx") }
 
     maxHeapSize = "3g"
+    jvmArgs("-XX:SoftRefLRUPolicyMSPerMB=50")
 
     doFirst {
         systemProperty("idea.home.path", intellijRootDir().canonicalPath)