[Performance] Lag spikes in Europe

It was better last week, but then this morning, huge lag spikes on EU servers make the game unplayable, again... This is a serious issue that plagued this league, I really hope you find a fix to this.
When you are uncertain to be able to play with consistency, it just makes you wanna drop the game and play something else TBH...

it's fascinating how i run a map with constant 30ms, enter the temple with constant 30ms, return to the map and the connection goes
1k......... .....
2k........ ......
3k....... .......
4k...... ........
5k..... .........
6k.... ..........
7k... ...........
8k.. ............
9k. .............
etc.
until i manage to enter and exit the temple again and suddenly .... connection is stable as if it never happened. wtf