Boosted Zipline after Base Guardians defeated is slower

[workshophatemachine]

Regular Zipline speed is 18 m/s
Boosted Zipline speed is 40 m/s
Zipline speed after taking the Base Guardian is 39 m/s
Boosted Zipline speed after taking the base Guardian is 34 m/s

Funny enough, boosting triggers the visual effect and increased FoV, but the speed is actually noticeably slower

 

[Fishjump]

It should prevent activating speed boost on these ziplines. Having a visual change to indicate the zipline is faster would be nice, too.