Slow flame time when an arrow with flame enchantment hit a player

Tried MOB

/summon skeleton ~ ~1 ~ {HandItems:[{tag:{Enchantments:[

{id:"flame",lvl:10s}

]},id:"minecraft:bow",Count:1b},{}],HandDropChances:[0f,0f]}

 

Even if flame Lv is high fire extinguishes in about 4 seconds.
It should burn for a long time if it is original.