Minecraft Function Tag Selector

i have a function with some command inside it

execute as @s at @s run tp @s ^ ^ 0.05
scoreboard players add @s tmp 1
tag @e[type=!area_effect_cloud,distance=..10] add hit
execute if score @s tmp < @s gun run function gunmech:move
scoreboard players set @s tmp 0

the "tag @e[type=!area_effect_cloud,distance=..10] add hit" command didn't do his thing even when there's so much mob around him this function run 107 times every tick, maybe there's something i didn't know?