Add some JVM optimisations.

I am using OpenJDK via https://adoptium.net

BurpSuitePro.vmoptions

@@ -0,0 +1,13 @@
+# Enter one VM parameter per line
+# For example, to adjust the maximum memory usage to 512 MB, uncomment the following line:
+# -Xmx512m
+# To include another file, uncomment the following line:
+# -include-options [path to other .vmoption file]
+
+-XX:MaxRAMPercentage=50
+-include-options user.vmoptions
+-Dsun.java2d.noddraw=true
+-Dsun.java2d.d3d=false
+-Dswing.useflipBufferStrategy=True
+-Dsun.java2d.ddforcevram=true
+-Dsun.java2d.ddblit=false