Running XF app on Android shows CPU usage that does not to 50%

I'm executing a XF app that does lots of operations in a loop and checking performance. I opened a terminal and ran 'adb shell' + 'Top' command to see CPU usage. My app's CPU usage does not go over 50%. It is like Android is preventing the app from using more CPU than 50%. You can see below, my app process is PID 1842.

1842 0 50% R 16 1007548K 123896K fg u0_a49 com.derive_systems.UX5

Does any body have an idea about this?

User 49%, System 2%, IOW 0%, IRQ 0%
User 298 + Nice 0 + Sys 13 + Idle 291 + IOW 0 + IRQ 0 + SIRQ 0 = 602

PID PR CPU% S  #THR     VSS     RSS PCY UID      Name
 1842  0  50% R    16 1007548K 123896K  fg u0_a49   com.derive_systems.UX5
  152  1   0% S    13 176404K   8140K  fg system   /system/bin/surfaceflinger
 1884  1   0% R     1   1288K    488K     root     top
  457  1   0% S    64 891028K  45708K  fg system   system_server
  100  0   0% S     1      0K      0K     root     kworker/0:2
  162  0   0% S     5   4604K    224K     root     /sbin/adbd
    9  0   0% S     1      0K      0K     root     rcu_bh