diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index 9baee13cd..8c7bf38d3 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -5274,7 +5274,7 @@ uint16_t mode_2DPlasmaball(void) {                   // By: Stepko https://edito
 
   SEGMENT.fadeToBlackBy(SEGMENT.custom1>>2);
 
-  float t = millis() / (33 - SEGMENT.speed/8);
+  uint_fast32_t t = (millis() * 8) / (256 - SEGMENT.speed);  // optimized to avoid float
   for (int i = 0; i < cols; i++) {
     uint16_t thisVal = inoise8(i * 30, t, t);
     uint16_t thisMax = map(thisVal, 0, 255, 0, cols-1);